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

Change-Id: I8426e0788ce1dcb12daac23e82663284633cae5b