gma500: Convert spaces to tabs in accel_2d.c.

Convert the spaces within the accel_2d.c file to tabs in order to comply
with the coding style of the kernel.
Signed-off-by: Akshay Joshi <me@akshayjoshi.com>
[Trimmed to subset relevant to current tree]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/gma500/accel_2d.c

@@ -118,7 +118,7 @@ static int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf,
 		size -= submit_size;
 		ret = psb_2d_wait_available(dev_priv, submit_size);
 		if (ret)
-		        break;
+			break;
 
 		submit_size <<= 2;