Add dynamic interface casting to NN utility code am: e5e67024c6 am: 7a9e26d3bd am: 05bf9efb1b

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1580709

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I5f2556513469105c00a000fe0feddc2e5fd47a2b