Merge "Add javadoc for (Persistable)Bundle.EMPTY" into sc-dev am: e1127fccde am: 426ac275fb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13425151

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ie2a73212b1614826fa06d9191fe9a7c9d21d30fb