Merge "Add performOperation stub." am: 310cd8ed72 am: 35adca9cab am: b852ae3ca0

Original change: https://android-review.googlesource.com/c/platform/system/keymaster/+/1597079

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I42e35ee1e78ff063894fd670d9fe6b96c3b28fa9