rename Kconfig symbol to the current one

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 39544

package/kernel/linux/modules/usb.mk

@@ -41,7 +41,7 @@ define KernelPackage/musb-hdrc
   KCONFIG:= \
 	CONFIG_USB_MUSB_HDRC \
 	CONFIG_MUSB_PIO_ONLY=n \
-	CONFIG_USB_MUSB_OTG=y \
+	CONFIG_USB_MUSB_DUAL_ROLE=y \
 	CONFIG_USB_MUSB_DEBUG=y
   DEPENDS:=@TARGET_omap24xx
   FILES:=$(LINUX_DIR)/drivers/usb/musb/musb_hdrc.ko