[automerger skipped] Merge "Use FLAG_IMMUTABLE for InboundSmsHandler" into pi-dev am: 811e1a07 -s ours

am skip reason: Change-Id Idc684438d2cd622adee9a1c4d1801e308ee5ead7 with SHA-1 412c0fe5 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/11414456

Change-Id: Ifbbb35f8b69aeb13746d1d0e5752befd8cd0697a