fix the "initializing global variables with values that are not
compile-time constants" issue in Intel SDK for OpenCL. The root cause
is when initializing global variables with value, the variable need is
compile-time constants.

Thanks Zheng, Yang <yang.zheng@intel.com>,
Chodor, Jaroslaw <jaroslaw.chodor@intel.com> give a help.
Signed-off-by: Liu,Kaixuan <kaixuan.liu@intel.com>
Signed-off-by: Jun Zhao <jun.zhao@intel.com>

3.4.0

Signed-off-by: Li Peng <peng.li@intel.com>

  * disable the warning in CMake, not int the code using pragma

  * confirmed test failure on Jetson TX1 and TX2
  * show the performance but not bit exact result

Signed-off-by: Li Peng <peng.li@intel.com>