Merge "InputMapper refactor: TouchpadInputMapper" into udc-dev am: e015d02604 am: 3ba2b9c59a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23101343

Change-Id: Ib03b7806ca30e3a514a37dce90f58188d0beb3e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>