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

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

Change-Id: I152a985c82abfc838a691d3bf09ddea59815f642
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>