regulator: arizona-micsupp: Add ramp time information

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/arizona-micsupp.c

@@ -101,6 +101,8 @@ static const struct regulator_desc arizona_micsupp = {
 	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
 	.bypass_mask = ARIZONA_CPMIC_BYPASS,
 
+	.enable_time = 3000,
+
 	.owner = THIS_MODULE,
 };