drm/i915: fix accidental static variable use

It's supposed to be just a const pointer.

Fixes: 074c77e ("drm/i915/tgl: Gen-12 display loses Yf tiling and legacy CCS support")
Cc: Ville Syrjälä <[email protected]>
Cc: Dhinakaran Pandiyan <[email protected]>
Cc: Lucas De Marchi <[email protected]>
Reviewed-by: Ville Syrjälä <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 48ea97f)
Signed-off-by: Joonas Lahtinen <[email protected]>

Author: jnikula

drivers/gpu/drm/i915/display/intel_sprite.c

@@ -2885,7 +2885,7 @@ struct intel_plane *
 skl_universal_plane_create(struct drm_i915_private *dev_priv,
 			   enum pipe pipe, enum plane_id plane_id)
 {
-	static const struct drm_plane_funcs *plane_funcs;
+	const struct drm_plane_funcs *plane_funcs;
 	struct intel_plane *plane;
 	enum drm_plane_type plane_type;
 	unsigned int supported_rotations;