drm/vmwgfx: Kill a bunch of sparse warnings

We're giving up all attempts to keep cpu- and device byte ordering separate.

This silences sparse when compiled using
make C=2 CF="-D__CHECK_ENDIAN__"

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 1892144..ab67d2a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1225,7 +1225,7 @@
  * @dev_priv: Pointer to device private struct.
  * Needs the reservation sem to be held in non-exclusive mode.
  */
-void __vmw_svga_enable(struct vmw_private *dev_priv)
+static void __vmw_svga_enable(struct vmw_private *dev_priv)
 {
 	spin_lock(&dev_priv->svga_lock);
 	if (!dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
@@ -1254,7 +1254,7 @@
  * Needs the reservation sem to be held in exclusive mode.
  * Will not empty VRAM. VRAM must be emptied by caller.
  */
-void __vmw_svga_disable(struct vmw_private *dev_priv)
+static void __vmw_svga_disable(struct vmw_private *dev_priv)
 {
 	spin_lock(&dev_priv->svga_lock);
 	if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) {