Merge "Identity: Add VTS test to check empty and semi-empty requests work properly." am: 75e326e17d am: 925757c2eb am: 347694c3cf am: c5c5af7462

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1360918

Change-Id: I2c963ca1516abc5a5f021d7d3ecc2cc9c7791cf2