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: 6b31fba5

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



Change-Id: I50c9c887dc3f15d5ffd13fd2d76f1e19894f2ff1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>