[PATCH] power: supply: ucs1002: Fix build error without CONFIG_REGULATOR

[YueHaibing]

Fix gcc build error while CONFIG_REGULATOR is not set

drivers/power/supply/ucs1002_power.o: In function `ucs1002_probe':
drivers/power/supply/ucs1002_power.c:593: undefined reference to `devm_regulator_register'
drivers/power/supply/ucs1002_power.o:(.rodata+0x3b8): undefined reference to `regulator_enable_regmap'
drivers/power/supply/ucs1002_power.o:(.rodata+0x3c0): undefined reference to `regulator_disable_regmap'
drivers/power/supply/ucs1002_power.o:(.rodata+0x3c8): undefined reference to `regulator_is_enabled_regmap'

Add Kconfig dependency to CONFIG_REGULATOR.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Fixes: 9a2688e42638 ("power: supply: Add driver for Microchip UCS1002")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/power/supply/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index ef36bd2..26dacda 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -682,6 +682,7 @@ config CHARGER_UCS1002
 	tristate "Microchip UCS1002 USB Port Power Controller"
 	depends on I2C
 	depends on OF
+	depends on REGULATOR
 	select REGMAP_I2C
 	help
 	  Say Y to enable support for Microchip UCS1002 Programmable
-- 
2.7.4