trusty: confui: Add option to use handle prot library am: c7d8c1cc22

Original change: https://android-review.googlesource.com/c/trusty/app/confirmationui/+/2654014

Change-Id: I97f83687f2fdcb67cbffcbce2b7f1dd62302b675
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>