src/poky:python3-setuptools: _distutils/sysconfig fix

Add patch to append STAGING_LIBDIR python-sysconfigdata to sys.path so
that packages which set SETUPTOOLS_USE_DISUTILS='local' cross-compile
properly with python3-setuptools-native.

Fixes:
ModuleNotFoundError: No module named '_sysconfigdata'

References:
https://setuptools.pypa.io/en/latest/deprecated/distutils-legacy.html#porting-from-distutils

(From OE-Core rev: f6fb99c53f779966fc902a629d0a8bbd9f84c6be)

Signed-off-by: Tim Orling <timothy.t.orling@intel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>