Merge "Update fontchain_lint to detect lack of PUA in emoji font" into tm-dev am: 52a6e5b7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17418819



Change-Id: I197045fc9567441d8d19b68fabaa882d9b5c0bc7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>