[automerger skipped] setcompat minsdk bump from 19 to 21 am: 79c963f27d -s ours

am skip reason: Merged-In I87e0918602e9fd989d5278f06d439d5b44a66190 with SHA-1 5628bb3d52 is already in history

Original change: https://android-review.googlesource.com/c/platform/external/setupcompat/+/3147840

Change-Id: I69a6008ebf7ca877f52a26d31c4be27b8d1add58
Signed-off-by: Automerger Merge Worker <[email protected]>