Merge "Restrict number of shortcuts can be added through addDynamicShortcuts" into sc-dev am: 110f1d8b am: ab7d63a7 am: fb370205 am: ebab9abb am: 5498e007 am: 1d43ff79

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23623415



Change-Id: I926c91f5b1dc886c932aea91ffa19531b8bd5050
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>