also set Wno-implicit-fallthrough for Android

Change-Id: Idac532f2ac43ef2b702561635c8a6804ae89ff74
Reviewed-on: https://skia-review.googlesource.com/148809
Auto-Submit: Mike Klein <mtklein@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
1 file changed