drm/radeon: Clean up errors in rs600.c

Fix the following errors reported by checkpatch:

ERROR: that open brace { should be on the previous line
Signed-off-by: GuoHua Chen <chenguohua_716@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/rs600.c

@@ -54,8 +54,7 @@
 static void rs600_gpu_init(struct radeon_device *rdev);
 int rs600_mc_wait_for_idle(struct radeon_device *rdev);
 
-static const u32 crtc_offsets[2] =
-{
+static const u32 crtc_offsets[2] = {
 	0,
 	AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
 };