Android 8.1.0 release 78
Fix accidental implicit fallthroughs

-Wimplicit-fallthrough was printing warnings for these, they look
like real errors.  Fix them and re-enable the error.

Bug: 144040966
Test: treehugger
Merged-In: I818e18a995760f17b85b4c72ee577e531fa2a601
Change-Id: I818e18a995760f17b85b4c72ee577e531fa2a601
(cherry picked from commit e38c5a976c09d9910f40dbfba61f1c2a7eeef1c9)
1 file changed