regulator: tps6105x: Constify tps6105x_regulator_ops

The only usage of tps6105x_regulator_ops is to assign its address to the
ops field in the regulator_desc struct, which is a const pointer. Make it
const to allow the compiler to put it in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20200829221104.20870-3-rikard.falkeborn@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/tps6105x-regulator.c

@@ -26,7 +26,7 @@ static const unsigned int tps6105x_voltages[] = {
 	5000000, /* There is an additional 5V */
 };
 
-static struct regulator_ops tps6105x_regulator_ops = {
+static const struct regulator_ops tps6105x_regulator_ops = {
 	.enable		= regulator_enable_regmap,
 	.disable	= regulator_disable_regmap,
 	.is_enabled	= regulator_is_enabled_regmap,