We have not supported python2 for some time now, so there is no reason
to maintain a separate python-subunit.inc file.
The wheel built by bdist_wheel is named 'python_subunit-*.whl', so set
PIP_INSALL_PACKAGE appropriately.
Add patch to use vendored _distutils from setuptools.
[YOCTO #14638]
(From OE-Core rev: 1183357dc9ebff0281c195b41f16fa07c79e84a0)
Signed-off-by: Tim Orling <tim.orling@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>