Allow MKL as a valid entry for AF_COMPUTE_LIBRARY
Allow MKL as a valid entry for AF_COMPUTE_LIBRARY

arrayfire/arrayfire,9prady9/arrayfire,umar456/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,umar456/arrayfire,umar456/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,umar456/arrayfire,arrayfire/arrayfire