Merge "Prevent writing to FRP partition during factory reset." into lmp-mr1-dev am: 4bd97eb888 am: a8484b4f92 am: d7f2a4b0c7 am: b64af9bacd am: e15e0de7e5 am: 6bb6f02a15 am: 03fa83e216 am: c189f23dd4 am: 835c1bcedb am: b5f3383589 am: e167e6d284
am: 4c57f6f500

Change-Id: I84c3e798f88439514d0faeaf0937d2648e07ee2e