Merge "Revert "Keystore 2.0 SPI: Move keymint spec to security namespace."" am: bc641a41d8 am: 9e21ecbcb4 am: 1de159412b

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1525805

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ie45400513bc12278a68c8af1b5a12ba754f048c5