Merge "Add callback into vendor interface to receive modem state change event"...

Merge "Add callback into vendor interface to receive modem state change event" into 24D1-dev am: 1ca93825

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/26623705



Change-Id: I5a4b9a4357b365dc03fff3bb9c46ae51b2819f73
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>