Merge "KeyMint: Add support for key agreement operation and use it for ECDH." am: df543ea006 am: 30f799ff0e am: e5ed85d5ef

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1544544

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I6d2f6af1d55c5fc4560fd54ab128ae9bcafd13b8