qa/valgrind.supp: be slightly less specific on suppression

I am seeing this trace, which matches except for the
'fun:_ZN15AsyncConnection7processEv' frame.

<error>
  <unique>0x2399</unique>
  <tid>11</tid>
  <threadname>msgr-worker-1</threadname>
  <kind>UninitCondition</kind>
  <what>Conditional jump or move depends on uninitialised value(s)</what>
  <stack>
    <frame>
      <ip>0x5366B18</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>ceph::crypto::onwire::AES128GCM_OnWireRxHandler::authenticated_decrypt_update_final(ceph::buffer::v14_2_0::list&amp;&amp;, unsigned int)</fn>
      <dir>/usr/src/debug/ceph-15.0.0-1717-g8d72af7/src/msg/async</dir>
      <file>crypto_onwire.cc</file>
      <line>274</line>
    </frame>
    <frame>
      <ip>0x5355E60</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>ProtocolV2::handle_read_frame_epilogue_main(std::unique_ptr&lt;ceph::buffer::v14_2_0::ptr_node, ceph::buffer::v14_2_0::ptr_node::disposer&gt;&amp;&amp;, int)</fn>
      <dir>/usr/src/debug/ceph-15.0.0-1717-g8d72af7/src/msg/async</dir>
      <file>ProtocolV2.cc</file>
      <line>1311</line>
    </frame>
    <frame>
      <ip>0x533E2A3</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>ProtocolV2::run_continuation(Ct&lt;ProtocolV2&gt;&amp;)</fn>
      <dir>/usr/src/debug/ceph-15.0.0-1717-g8d72af7/src/msg/async</dir>
      <file>ProtocolV2.cc</file>
      <line>45</line>
    </frame>
    <frame>
      <ip>0x534FB1C</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>ProtocolV2::reuse_connection(boost::intrusive_ptr&lt;AsyncConnection&gt; const&amp;, ProtocolV2*)::{lambda(ConnectedSocket&amp;)#3}::operator()(ConnectedSocket&amp;)::{lambda()#2}::operator()()</fn>
      <dir>/usr/src/debug/ceph-15.0.0-1717-g8d72af7/src/msg/async</dir>
      <file>ProtocolV2.cc</file>
      <line>2739</line>
    </frame>
    <frame>
      <ip>0x534FF57</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>ProtocolV2::reuse_connection(boost::intrusive_ptr&lt;AsyncConnection&gt; const&amp;, ProtocolV2*)::{lambda(ConnectedSocket&amp;)#3}::operator()(ConnectedSocket&amp;)</fn>
      <dir>/usr/src/debug/ceph-15.0.0-1717-g8d72af7/src/msg/async</dir>
      <file>ProtocolV2.cc</file>
      <line>2745</line>
    </frame>
    <frame>
      <ip>0x535001E</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>__invoke_impl&lt;void, ProtocolV2::reuse_connection(const AsyncConnectionRef&amp;, ProtocolV2*)::&lt;lambda(ConnectedSocket&amp;)&gt;&amp;, ConnectedSocket&amp;&gt;</fn>
      <dir>/opt/rh/devtoolset-8/root/usr/include/c++/8/bits</dir>
      <file>invoke.h</file>
      <line>60</line>
    </frame>
    <frame>
      <ip>0x535001E</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>__invoke&lt;ProtocolV2::reuse_connection(const AsyncConnectionRef&amp;, ProtocolV2*)::&lt;lambda(ConnectedSocket&amp;)&gt;&amp;, ConnectedSocket&amp;&gt;</fn>
      <dir>/opt/rh/devtoolset-8/root/usr/include/c++/8/bits</dir>
      <file>invoke.h</file>
      <line>95</line>
    </frame>
    <frame>
      <ip>0x535001E</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>__call&lt;void, 0&gt;</fn>
      <dir>/opt/rh/devtoolset-8/root/usr/include/c++/8</dir>
      <file>functional</file>
      <line>400</line>
    </frame>
    <frame>
      <ip>0x535001E</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>operator()&lt;&gt;</fn>
      <dir>/opt/rh/devtoolset-8/root/usr/include/c++/8</dir>
      <file>functional</file>
      <line>484</line>
    </frame>
    <frame>
      <ip>0x535001E</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>EventCenter::C_submit_event&lt;std::_Bind&lt;ProtocolV2::reuse_connection(boost::intrusive_ptr&lt;AsyncConnection&gt; const&amp;, ProtocolV2*)::{lambda(ConnectedSocket&amp;)#3} (ConnectedSocket)&gt; &gt;::do_request(unsigned long)</fn>
      <dir>/usr/src/debug/ceph-15.0.0-1717-g8d72af7/src/msg/async</dir>
      <file>Event.h</file>
      <line>227</line>
    </frame>
    <frame>
      <ip>0x535FCD6</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>EventCenter::process_events(unsigned int, std::chrono::duration&lt;unsigned long, std::ratio&lt;1l, 1000000000l&gt; &gt;*)</fn>
      <dir>/usr/src/debug/ceph-15.0.0-1717-g8d72af7/src/msg/async</dir>
      <file>Event.cc</file>
      <line>441</line>
    </frame>
    <frame>
      <ip>0x5365086</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>operator()</fn>
      <dir>/usr/src/debug/ceph-15.0.0-1717-g8d72af7/src/msg/async</dir>
      <file>Stack.cc</file>
      <line>53</line>
    </frame>
    <frame>
      <ip>0x5365086</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>std::_Function_handler&lt;void (), NetworkStack::add_thread(unsigned int)::{lambda()#1}&gt;::_M_invoke(std::_Any_data const&amp;)</fn>
      <dir>/opt/rh/devtoolset-8/root/usr/include/c++/8/bits</dir>
      <file>std_function.h</file>
      <line>297</line>
    </frame>
    <frame>
      <ip>0x55F519E</ip>
      <obj>/usr/lib64/ceph/libceph-common.so.0</obj>
      <fn>execute_native_thread_routine</fn>
    </frame>
    <frame>
      <ip>0x1076BDD4</ip>
      <obj>/usr/lib64/libpthread-2.17.so</obj>
      <fn>start_thread</fn>
    </frame>
    <frame>
      <ip>0x118E0EAC</ip>
      <obj>/usr/lib64/libc-2.17.so</obj>
      <fn>clone</fn>
    </frame>
  </stack>
</error>

Signed-off-by: Sage Weil <sage@redhat.com>
(cherry picked from commit f019fc0)

qa/valgrind.supp

@@ -612,7 +612,6 @@
    fun:_ZN10ProtocolV231handle_read_frame_epilogue_mainEOSt10unique_ptrIN4ceph6buffer7v14_2_08ptr_nodeENS4_8disposerEEi
    fun:_ZN10ProtocolV216run_continuationER2CtIS_E
    ...
-   fun:_ZN15AsyncConnection7processEv
    fun:_ZN11EventCenter14process_eventsEjPNSt6chrono8durationImSt5ratioILl1ELl1000000000EEEE
    fun:operator()
    fun:_ZNSt17_Function_handlerIFvvEZN12NetworkStack10add_threadEjEUlvE_E9_M_invokeERKSt9_Any_data