Precompile intermediate sources

Certain code in Mesa is generated by python scripts that want modules
that aren't part of Android's standard build requirements. This patch
introduces pre-generated versions of those files for our usage.

Test: Build now completes without needing additional python modules on
      the host.
Bug: 32336912

Change-Id: I3db6b86db0ebf7f2fba78a0b3aa34e169471fd1a
19 files changed