Merge "Add media bootclasspath fragment to its sdk" into sc-dev am: b2a7666b...

Merge "Add media bootclasspath fragment to its sdk" into sc-dev am: b2a7666b am: 813c11fe am: d66810e2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14881291

Change-Id: I8f526400cf31c270fae698d768cac3be4490e676