[automerger skipped] Support to get EC public key from the UdsCertchain. am: 251499ca -s ours

am skip reason: Merged-In I7f829b1346feeab0fd429ad7b9714181b6668b34 with SHA-1 a18883a5 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/23844502



Change-Id: I3f92e4f163e040c77920c0646b4ae3d7b51615b2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>