Merge "Add is_fixed_read_only: true to MIDI extraction mainline flag def" into main am: 43e2a8b6

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3307215



Change-Id: I6a6477d2160f62d37345f7ff8f2e858060edcf7a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>