regulator: arizona-micsupp: Enable bypass in default constraints

This will be used as part of low power accessory detect.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/arizona-micsupp.c

@@ -177,7 +177,8 @@ static const struct regulator_desc arizona_micsupp = {
 static const struct regulator_init_data arizona_micsupp_default = {
 	.constraints = {
 		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
-				REGULATOR_CHANGE_VOLTAGE,
+				REGULATOR_CHANGE_VOLTAGE |
+				REGULATOR_CHANGE_BYPASS,
 		.min_uV = 1700000,
 		.max_uV = 3300000,
 	},