Merge "Add new sysui-silver mapping" into udc-dev am: 13ff9889 am: f4f05e9d am: 04bccdd6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23468188



Change-Id: Iccc84b4862c7b08f3dd7b1fc3111ba8ecf2c15d7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>