drm-tests: add sync test

Add test for Android sw_sync interface.

BUG=chromium:753530
TEST=emerge and deploy drm-tests. run synctest

Change-Id: I65f6cdec76c33f85e43e3975428352788e2508dd
Signed-off-by: Dominik Behr <dbehr@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/638831
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
2 files changed