python: update to 3.5.3

python: update to 3.5.3

Prior versions of python do not support openssl 1.1; updating to
Python 3.6 on the other hand is a lot more involved, and so should
be done by a specialist/maintainer.

LICENSE checksum change due to copyright years.

Drop upstreamed python3-fix-CVE-2016-1000110.patch

Rebase upstream-random-fixes.patch (taken from
https://github.com/python/cpython/commit/ff558f5aba40bd173f336503def886a12f8db016 )

Rebase 0001-Do-not-use-the-shell-version-of-python-config-that-w.patch

Rebase 000-cross-compile.patch

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>