Blender Git Loki

Fix T46090: Blender game embedded player crash

SCons didn't pass `-DWITH_AUDASPACE` to the compiler, so it skipped the
instantiation of the "aud" Python module. This caused a crash of the BGE,
which did get the `-DWITH_AUDASPACE` directive, and expected that module
to exist.

Reviewed by: lukastoenne