Merge tag 'android-8.1.0_r30' into lineage-15.1

Android 8.1.0 release 30

# gpg: Signature made Mon 04 Jun 2018 10:23:42 AM PDT using DSA key ID 9AB10E78
# gpg: Can't check signature: public key not found

* tag 'android-8.1.0_r30':
  DO NOT MERGE (O) Revoke permision when group changed
  ResStringPool: Fix security vulnerability
  Use concrete CREATOR instance for parceling lists
  Rework thumbnail cleanup
  Proper autofill fix to let phone process autofill Settings activity.
  Fixed Security Vulnerability of DcParamObject
  Update internal ViewPager's SavedState to match Support Library version
  [DO NOT MERGE] Copy PermissionChecker from support lib and use in RcognitionService
  [DO NOT MERGE] Add permission check to setAllowOnlyVpnForUids
  Verify last array's length in readFromParcel
  DO NOT MERGE - fix AFM.getComponentNameFromContext()
  Make sure apps cannot forge package name on AssistStructure used for Autofill.