Merge "Add CowOperationV2" into main am: a10bfe1d13 am: 445d13f73f

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2736100

Change-Id: I6cef7237ca834a74457422fa5e61b4a8c208ca0c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>