[automerger skipped] Make init.userspace_reboot.is_supported a rw property am: 9fd393f430 -s ours

am skip reason: Change-Id I7552d5ccc6e9b750a6081947eef8fcb027be13e1 with SHA-1 663cd35030 is in history

Change-Id: Iea491137db1f9dd047c3d82ecc6f97d83e860712