Merge "KeyMint VTS: check chain size before dereferencing" am: 543eb71cb6 am: abe4c2ec93 am: 87d139a9c0

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2119365

Change-Id: I1f1d08b974bc4e88219ccf79e1b8819d3ff592c0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>