Added tuning for DGEMV on Iris and SGEMV on K40m
Added tuning for DGEMV on Iris and SGEMV on K40m

dividiti/CLBlast,CNugteren/CLBlast,dividiti/CLBlast,gpu/CLBlast,gpu/CLBlast,dividiti/CLBlast,gpu/CLBlast,CNugteren/CLBlast,CNugteren/CLBlast