AudioAttributes: unhide CREATOR

android.media.AudioAttributes implements the Parcelable interface,
 and is part of the SDK, it therefore requires CREATOR, writeToParcel,
 and describeContents to be "unhidden".
CREATOR was still @hide

Bug 17390818

Change-Id: I9c1cb1d454fe538cb5be6066ebed290a99352da9
2 files changed