Merge "media: clarify keys used for CodecCapabilities.isFormatSupported" into rvc-dev am: db6e11150c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12062381

Change-Id: I2cabf1f0a9a2b603b4f698272137e6c63dd1c121