Add a binary to generate .map files from filesystem image am: 83b594bb04 am: 9f03116dcc

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2605629

Change-Id: I5ce4ca62783e8240d0c6c22ad5043f5b309b4f15
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>