Merge "media: clarify keys used for CodecCapabilities.isFormatSupported" into rvc-dev am: db6e11150c am: 0511013257

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

Change-Id: If7b750c3a4a001153f39dfb21355ac10832c4f5d