Mark the EntitlementManager PendingIntents as immutable. am: a36d65da0a am: ec93812466 am: 8688028150

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1557108

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ie300969f4d942fedefb5f23d7cba6eab37de521f
tree: 36ef5585b7225abb1d1cc939d0b706588af4f522
  1. framework/
  2. tests/
  3. Tethering/
  4. .gitignore
  5. OWNERS
  6. PREUPLOAD.cfg
  7. TEST_MAPPING