drm/tidss: Drop pointless static qualifier in dispc_find_csc()

There is no need to have the 'const struct dispc_csc_coef *coef'
variable static since new value always be assigned before use it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Jyri Sarha <jsarha@ti.com>
Tested-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200227065057.92766-1-yuehaibing@huawei.com

drivers/gpu/drm/tidss/tidss_dispc.c

@@ -1505,7 +1505,7 @@ struct dispc_csc_coef *dispc_find_csc(enum drm_color_encoding encoding,
 static void dispc_vid_csc_setup(struct dispc_device *dispc, u32 hw_plane,
 				const struct drm_plane_state *state)
 {
-	static const struct dispc_csc_coef *coef;
+	const struct dispc_csc_coef *coef;
 
 	coef = dispc_find_csc(state->color_encoding, state->color_range);
 	if (!coef) {