[automerger skipped] Merge "KeyMint VTS: catch empty cert chains" into sc-dev...

[automerger skipped] Merge "KeyMint VTS: catch empty cert chains" into sc-dev am: 6e46363a am: ef49c282 -s ours am: 9676ac7a -s ours

am skip reason: Merged-In Idad2703b458952ff599c6ccdd04a941aef7aedde with SHA-1 1cc41688 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15518062

Change-Id: Ib8e448001adebe25e8f6408edcc45fb999abb22e