Merge "Use libhex" into main am: e88e69dabc

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2786546

Change-Id: Id210e1af8ff10c8b34a33207a13fccbc0bcaac07
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>