Re-map source partitions with RW permission during OTA am: 08bbbd4964 am: 5cc1df0bc3

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/3243626

Change-Id: I16b76b8747d6346c49313f7572288c6b48b75f00
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>