[automerger skipped] Add VTS tests for NNAPI compilation caching. am: 96e68dc8e0 am: 1380933846
am: 719c81aa19 -s ours
am skip reason: change_id Iae9211cb28ce972b29572dfedd45d1ade4dfdaf5 with SHA1 3405878e5e is in history

Change-Id: Ia3832ec8bebdc550791f4db20183d1cdce85251b