[automerger skipped] setcompat minsdk bump from 19 to 21 am: 79c963f27d -s ours am: 978d4ed97d -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: Ife919d5bf8950de28d2f378e34dd78990bf7b8bc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>