msys-python: Add a patch to store libpython2.7.dll.a in the lib directory

The default directory of lib/python2.7/config is not in GCC's standard
library path and thus Python bindings of e.g. msys-libxslt would fail to
build.

Also bump the issue date for this silent package update.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>