Merge "Changes for Vts related to Strongbox. Strongbox is only required to...

Merge "Changes for Vts related to Strongbox. Strongbox is only required to supports 2048 bit keys and optionally required to support Device Unique Attestations. Test: atest VtsHalKeymasterV4_0TargetTest and atest VtsHalKeymasterV4_1TargetTest. Bug: Related to b/150122447." am: 58a8db21 am: 37a59e40 am: 685d50cf am: 3cc3cacb

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1597153

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I4ae9a9ebe91c0f8e5e7c9f4ab3ebb48e51b5ea9a