Merge "Add vendorExtension implementation for all unknown parameters" am: 253b5e908c am: 5d16383852

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2470061

Change-Id: I04f5b42a6ea6c18b77f4fd89574394ba5f7ac5f9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>