ARM: Kirkwood: Enable regulator and fixed regulators.

A few boards use a GPIO line to enable power to subsystems, eg USB or
SATA devices. Pull in the regulator framework as the first step to
controlling these GPIO lines are regulators.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

arch/arm/mach-kirkwood/Kconfig

@@ -49,6 +49,8 @@ config ARCH_KIRKWOOD_DT
 	select POWER_SUPPLY
 	select POWER_RESET
 	select POWER_RESET_GPIO
+	select REGULATOR
+	select REGULATOR_FIXED_VOLTAGE
 	select USE_OF
 	help
 	  Say 'Y' here if you want your kernel to support the