Added api-c & test_c_symbols testcases under ptest.
Shipping benchdnn, which is a standalone correctness and performance
benchmark for Intel(R) Math Kernel Library for Deep
Neural Networks (Intel(R) MKL-DNN).
Signed-off-by: Naveen Saini <naveen.kumar.saini@intel.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
