Add /dev/kmsg_debug. am: 521742e9 am: 1176de8e

am: b9eba1d0

Change-Id: I5a324c714f30cbbd76fda809c01cdbb44a533d52

prebuilts/api/26.0/26.0.ignore.cil

+;; new_objects - a collection of types that have been introduced that have no
+;;   analogue in older policy.  Thus, we do not need to map these types to
+;;   previous ones.  Add here to pass checkapi tests.
+(typeattribute new_objects)
+(typeattributeset new_objects (kmsg_debug_device))