Python 3.6 comes with some new cross-compilation logic that
generates filenames/paths with arch, abiflags and mach
included (in filename & path).

Problem is that the generated paths/filenames are not
consistent across archs (noticed on x86_64 & ar71xx),
so patch `016-adjust-config-paths.patch` was added
to mitigate this (by removing extra stuff in paths).

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

And move \`python3-package.mk\` include, same as in python package.
This is mostly to have consistency/similarity between python & python3
packages.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>