Add CPU_WRITE_RARELY flag am: 802c53da89 am: cefade7fa9

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2700498

Change-Id: I8ed2bd16e6180d368c3fa87bec1dd0a604933924
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>