Test: minor fixes in convolution tester
Test: minor fixes in convolution tester

Maratyszcza/NNPACK,Maratyszcza/NNPACK,convercraft/NNPACK,Maratyszcza/NNPACK,convercraft/NNPACK,microblink/NNPACK,convercraft/NNPACK,microblink/NNPACK,Maratyszcza/NNPACK,microblink/NNPACK,convercraft/NNPACK,microblink/NNPACK