Add utils for AIDL types conversions

Add conversions between canonical types and NNAPI AIDL interface types
that are needed for AIDL sample driver implementation.

Bug: 172922059
Test: VtsNeuralnetworksTargetTest
Change-Id: I02803302e02457e52c752114b47b94239eff20e9
Merged-In: I02803302e02457e52c752114b47b94239eff20e9
(cherry picked from commit 532136b9d42e22a9c8280b8c62a3f5e91822e5b6)
9 files changed