Merge "Add subsample offset to the exposed MediaFormat" into rvc-dev am: ce0cc66945 am: db433513ef am: fb53f4d199 am: 40b68ce0d8

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

Change-Id: I1b7f7c3bea8cbb0646826f02c2c76fde7db626e2