[automerged blank] Add PickerMediaColumns to the MediaStore API 2p: 7c50bb94d7

Blank merge reason: Change-Id If244d784897714190b393a79746c13175fc41988 with SHA-1 7d8215ad57 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/providers/MediaProvider/+/16141011

Bug: 201385900
Change-Id: Ib66090f301acd283ab67db95f01aa57959582f81