Merge "KeyMint VTS: cope with ATTEST_KEY +/- SIGN" am: 11cb564913 am: cbaede3f72 am: e9e12405f5 am: 6f0775a6ea am: dca362f7df

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2123433

Change-Id: I3dd95b8c32fa593a9a2e91955b5a6bfdb7be9585
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>