safe-guards to limit opencl max params on some hw/runtimes
safe-guards to limit opencl max params on some hw/runtimes

kknox/clFFT,ghisvail/clFFT,liebharc/clFFT,liebharc/clFFT,liebharc/clFFT,arrayfire/clFFT,clMathLibraries/clFFT,arrayfire/clFFT,arrayfire/clFFT,ghisvail/clFFT,ghisvail/clFFT,kknox/clFFT,liebharc/clFFT,clMathLibraries/clFFT,kknox/clFFT,clMathLibraries/clFFT