Merge "Limit number of notification actions created" into tm-dev am: 7a06b6ae

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17640134



Change-Id: I7180715a1cb266da9585621ca9127f0b9ba83c77
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>