Merge "Add vendorExtension implementation for all unknown parameters" am:...

Merge "Add vendorExtension implementation for all unknown parameters" am: 253b5e90 am: 5d163838 am: c2bdea7f am: e2a6fc6d am: b88b503f

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



Change-Id: Ic84144816d584804d032a5cce1835b8e96b3977b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>