Merge "Make mutable implicit PendingIntent explicit for security reasons" am: 9b2df0e11f am: 5e978aa9d1

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2346082

Change-Id: Ie5016bc32c1ad596896deea29213bbc26de2375e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>