Add missing NNAPI HIDL interface mock tests

prepareModelFromCache* was tested for handling of errors happening
during the preparation launch but not during the actual preparation.

Bug: 163801800
Test: mma
Test: atest neuralnetworks_utils_hal_common_test
Test: atest neuralnetworks_utils_hal_1_[0-3]_test
Change-Id: I2c4b235fd4877238d7a18be8b0ea051434c1df6b