[automerger skipped] Merge "Make init.userspace_reboot.is_supported a rw property" into rvc-dev am: 1524571ff3 am: 5e49215410 -s ours

am skip reason: Change-Id Ie3604b315a5d2a846037064ad9a29258f2cad9d0 with SHA-1 8e12e1be21 is in history

Change-Id: Ic79937357a93c212e9b29a0e52f907fec7d259ec