Add new SecurityLevel::KEYSTORE am: 09f4710d96 am: 3ba02dc38b

Original change: https://android-review.googlesource.com/c/platform/system/keymaster/+/1552740

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I7bde7fcfe93ab1e59c0300b44e0b343e214cbb84