Add tool makefiles to Android merge commit.
Add tool makefiles to Android merge commit.

These files are now generated by gyp_to_android. Check in
the generated files along with the merge.

BUG=skia:2447
R=borenet@google.com

Author: scroggo@google.com

Review URL: https://codereview.chromium.org/289043005

google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot