ARM: OMAP: enable TWL4030_USB in omap2plus_defconfig

Enable TWL4030_USB which is used at least on Nokia N900/N950/N9 (OMAP3)
and BeagleBoard.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/configs/omap2plus_defconfig

@@ -377,6 +377,7 @@ CONFIG_PWM_TWL=m
 CONFIG_PWM_TWL_LED=m
 CONFIG_OMAP_USB2=m
 CONFIG_TI_PIPE3=y
+CONFIG_TWL4030_USB=m
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set