Merge "identity: Add multi-document presentation support." am: 2e182eaf1a am: 0e7c06f8f4 am: 86b0e740e7

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1824772

Change-Id: If8814639767a7ec71879f8a87af46e6297d31525