diag: Add timer to make sure wakelock no stuck

Bug: 142000171
cherry-pick from I81666dcc18c584dbcbd9f588f187ae87a377bcb0
Signed-off-by: Jie Song <jies@google.com>

Change-Id: I7bb84dec4d352ef731b2457dc15590a29ed57a90
1 file changed