regulator: qcom_smd: add get_voltage to MP5496

Add the get_voltage OP to MP5496 ops using the generic rpm_reg_get_voltage.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Link: https://lore.kernel.org/r/20220604193300.125758-1-robimarko@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/qcom_smd-regulator.c

@@ -205,6 +205,7 @@ static const struct regulator_ops rpm_mp5496_ops = {
 	.is_enabled = rpm_reg_is_enabled,
 	.list_voltage = regulator_list_voltage_linear_range,
 
+	.get_voltage = rpm_reg_get_voltage,
 	.set_voltage = rpm_reg_set_voltage,
 };