Merge tag 'android-9.0.0_r60' into staging/lineage-16.0_merge-android-9.0.0_r60

Android 9.0.0 release 60

* tag 'android-9.0.0_r60':
  Use FLAG_IMMUTABLE for InstallCarrierAppUtils
  Use FLAG_IMMUTABLE for InboundSmsHandler
  Use FLAG_IMMUTABLE for CarrierServiceStateTracker
  Use FLAG_IMMUTABLE for CarrierKeyDownloadManager
  Use FLAG_IMMUTABLE
  Restrict access to the resolution PendingIntent created by EuiccController to EuiccResolutionUiDispatcherActivity
  Added FLAG_IMMUTABLE flag for security purposes

Change-Id: I9e8b9922311f235380a99667dc3e8f10ce418caf