regulator: max8952: constify regulator_ops structure

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/max8952.o
text data bss dec hex filename
3048 496 0 3544 dd8 drivers/regulator/max8952.o

File size after: drivers/regulator/max8952.o
text data bss dec hex filename
3304 240 0 3544 dd8 drivers/regulator/max8952.o

Signed-off-by: Bhumika Goyal <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/max8952.c

···
 	return 0;
 }
 
-static struct regulator_ops max8952_ops = {
+static const struct regulator_ops max8952_ops = {
 	.list_voltage		= max8952_list_voltage,
 	.get_voltage_sel	= max8952_get_voltage_sel,
 	.set_voltage_sel	= max8952_set_voltage_sel,