ENGR00240988: gpu: mach/hardware.h is not available in kernel 3.10

ENGR00240988: gpu: mach/hardware.h is not available in kernel 3.10

In kernel 3.10, drivers can not include any <mach/*> headers.  Do not
include <mach/hardware.h> for 3.10 kernel to fix the follow build
errors.

  CC      drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_device.o
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_device.c:28:27: fatal error: mach/hardware.h: No such file or directory

  CC      drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.o
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:33:27: fatal error: mach/hardware.h: No such file or directory

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>