Merge "check-flagged-apis: create list of @FlaggedApi errors" into main am:...

Merge "check-flagged-apis: create list of @FlaggedApi errors" into main am: fde34c3b am: 0b27706b

Original change: https://android-review.googlesource.com/c/platform/build/+/3042361



Change-Id: If0ddaee5a31f7001de307987dfabf439be17278e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>