Merge "update mainline branch reminder from T to U" into main am: 01f625c0...

Merge "update mainline branch reminder from T to U" into main am: 01f625c0 am: 7aa150cd am: efe6216d

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2901086



Change-Id: Ie75f66afcf9c6e0e96260b6fab5e00c5af5407cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>