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: 228f20b2 am: dc8e03e3

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

Change-Id: I697dd5030bc3f5ae75e3a44b5a5068d2d18e76b7