ARM: omap2plus_defconfig: Enable twl6030 USB phy as loadable module

This is in use on omap4 boards.
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/configs/omap2plus_defconfig

@@ -364,6 +364,7 @@ CONFIG_USB_SERIAL_FTDI_SIO=m
 CONFIG_USB_SERIAL_PL2303=m
 CONFIG_USB_TEST=m
 CONFIG_AM335X_PHY_USB=y
+CONFIG_TWL6030_USB=m
 CONFIG_USB_GADGET=m
 CONFIG_USB_GADGET_DEBUG=y
 CONFIG_USB_GADGET_DEBUG_FILES=y