drm/imx: imx-tve: constify clk_ops structure

The clk_ops structure is only stored in the ops field of a
clk_init_data structure.  This field is const, so the clk_ops
structure can be const as well.

Identified and transformed using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

drivers/gpu/drm/imx/imx-tve.c

@@ -434,7 +434,7 @@ static int clk_tve_di_set_rate(struct clk_hw *hw, unsigned long rate,
 	return 0;
 }
 
-static struct clk_ops clk_tve_di_ops = {
+static const struct clk_ops clk_tve_di_ops = {
 	.round_rate = clk_tve_di_round_rate,
 	.set_rate = clk_tve_di_set_rate,
 	.recalc_rate = clk_tve_di_recalc_rate,