[automerger skipped] Merge "Use FLAG_IMMUTABLE" into qt-qpr1-dev am:...

[automerger skipped] Merge "Use FLAG_IMMUTABLE" into qt-qpr1-dev am: 7a87f63a -s ours am: 0485a8af -s ours

am skip reason: Change-Id If127b73c975b5b3f004500de7f9baa6a7bc00ce4 with SHA-1 a2183fe7 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/11402660

Change-Id: I03383f8dcec6f8101f849d6c0d77e5159fa764df