Merge "Add subsample offset to the exposed MediaFormat" into rvc-dev am: ce0cc66945 am: db433513ef am: fb53f4d199

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11986786

Change-Id: Iac3df4d72fd7171ea87bd3b421bbd4970949a99f