[automerger skipped] Implement sysprop_library API stability check
am: b25aee08ca -s ours
am skip reason: change_id I40780d770d0e55fa3c164a5b39911a47c1145284 with SHA1 f5ec3fa1b4 is in history

Change-Id: I0a3c41686b3130e9f6a77b37d01445fdcda102c9