regulator: pv88060-regulator: 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/pv88060-regulator.o
text data bss dec hex filename
6195 752 8 6955 1b2b regulator/pv88060-regulator.o

File size after: drivers/regulator/pv88060-regulator.o
text data bss dec hex filename
6739 240 8 6987 1b4b regulator/pv88060-regulator.o

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

drivers/regulator/pv88060-regulator.c

···
 	return info->current_limits[data];
 }
 
-static struct regulator_ops pv88060_buck_ops = {
+static const struct regulator_ops pv88060_buck_ops = {
 	.get_mode = pv88060_buck_get_mode,
 	.set_mode = pv88060_buck_set_mode,
 	.enable = regulator_enable_regmap,
···
 	.get_current_limit = pv88060_get_current_limit,
 };
 
-static struct regulator_ops pv88060_ldo_ops = {
+static const struct regulator_ops pv88060_ldo_ops = {
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
 	.is_enabled = regulator_is_enabled_regmap,