Move cert chain management out of AttestKeyResponse am: 2b9ffbdef4 am: 1e926e0fbb

Original change: https://android-review.googlesource.com/c/platform/system/keymaster/+/1521010

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Idff15bd132a90619c4b88d45d64dd69100d752b7