Fix packaging for libzoa.so (openzfs#42)

Move libzoa.so from package zfsutils-linux to libzfslinux-dev and
obtain it from its "installed" location (lib/) rather than the src tree

debian/libzfslinux-dev.install

@@ -1,4 +1,4 @@
 lib/*.a usr/lib/
 usr/include
-usr/lib/*.so
+lib/*.so
 lib/pkgconfig/*.pc

debian/rules

@@ -96,12 +96,6 @@ override_dh_auto_install:
 	printf '#!/bin/sh\ncp "$$@"\n' > '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/cp'
 	chmod 755 '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/cp'
 
-	mkdir -p $(CURDIR)/debian/tmp/usr/lib
-	for i in `ls $(CURDIR)/debian/tmp/lib/*.so`; do \
-		ln -s /lib/`readlink $${i}` $(CURDIR)/debian/tmp/usr/lib/`basename $${i}`; \
-		rm $${i}; \
-	done
-
 	chmod a-x $(CURDIR)/debian/tmp/etc/zfs/zfs-functions
 	chmod a-x $(CURDIR)/debian/tmp/etc/default/zfs
 

debian/zfsutils-linux.install

@@ -24,6 +24,7 @@ usr/lib/*/zfs/zpool.d/
 usr/lib/*/zfs/zpool_influxdb
 sbin/fsck.zfs
 sbin/mount.zfs
+sbin/zcache
 sbin/zcachedb
 sbin/zgenhostid
 sbin/ztest
@@ -39,7 +40,6 @@ sbin/zfs
 sbin/zfs_object_agent
 sbin/zfs_object_perf
 sbin/zoa_test
-cmd/zfs_object_agent/libzoa.so lib/
 usr/bin/zvol_wait
 usr/bin/zoa_chaos_monkey
 usr/bin/start_zoa