Merge "Merge "Limit the size of NotificationChannel and...

Merge "Merge "Limit the size of NotificationChannel and NotificationChannelGroup" into rvc-dev am: 04ccf69d am: 6155a177 am: c08dd8f0 am: 695d9cce am: 3e7871d1 am: ba90f2a5" into tm-d1-dev-plus-aosp am: 4a528745

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19697197



Change-Id: Ie7e61ecc622c259ec7e7d4a469d192e701b841f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>