Fix benchmark blas example datatype
Fix benchmark blas example datatype

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