clk: max77686: 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>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/clk-max77686.c

@@ -137,7 +137,7 @@ static unsigned long max77686_recalc_rate(struct clk_hw *hw,
 	return 32768;
 }
 
-static struct clk_ops max77686_clk_ops = {
+static const struct clk_ops max77686_clk_ops = {
 	.prepare	= max77686_clk_prepare,
 	.unprepare	= max77686_clk_unprepare,
 	.is_prepared	= max77686_clk_is_prepared,