Merge "Correct documentation of AppWidgetProviderInfo" into sc-dev am: 4ac31d7f6c am: d62f3cc7c2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15825508

Change-Id: I152f506c3a946121e08c190659981e1a12816b7f