ARM: defconfig: lpc32xx: enable fixed voltage regulator support

Fixed voltage regulators are found on Phytec phyCORE-LPC3250 board,
enable the correspondent device driver by default.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>

arch/arm/configs/lpc32xx_defconfig

@@ -104,6 +104,8 @@ CONFIG_SENSORS_DS620=y
 CONFIG_SENSORS_MAX6639=y
 CONFIG_WATCHDOG=y
 CONFIG_PNX4008_WATCHDOG=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_DRM=y
 CONFIG_DRM_PL111=y
 CONFIG_FB_MODE_HELPERS=y