Merge "Load wayland proto definitions if available otherwise load stubs" into rvc-dev am: 2e4598b0c9 am: 431bcbd6b9

Original change: https://googleplex-android-review.googlesource.com/c/platform/development/+/11525250

Change-Id: I7c886f198d04c2f352bc069e3c0d84262b7d5916