regulator: max77826: Constify static data

Driver does not modify static data with regulator description (struct
regulator_desc), so make it const for code safety.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240909-regulator-const-v1-10-8934704a5787@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/max77826-regulator.c

@@ -186,7 +186,7 @@ static const struct regulator_ops max77826_buck_ops = {
 	.set_voltage_time_sel	= max77826_set_voltage_time_sel,
 };
 
-static struct regulator_desc max77826_regulators_desc[] = {
+static const struct regulator_desc max77826_regulators_desc[] = {
 	MAX77826_LDO(1, NMOS),
 	MAX77826_LDO(2, NMOS),
 	MAX77826_LDO(3, NMOS),