omap3_beagle: use new MUSB intstead of the old one

Enable using of new MUSB framework on Beagle.

NOTE! This is not just a change of backend code: top-level behavior
is also changed, we now use USB device port for USB Ethernet instead
of serial.

Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>

include/configs/omap3_beagle.h

@@ -117,17 +117,14 @@
 #define CONFIG_SYS_I2C_NOPROBES		{{0x0, 0x0}}
 
 /* USB */
-#define CONFIG_MUSB_UDC			1
-#define CONFIG_USB_OMAP3		1
+#define CONFIG_MUSB_GADGET
+#define CONFIG_USB_MUSB_OMAP2PLUS
+#define CONFIG_MUSB_PIO_ONLY
+#define CONFIG_USB_GADGET_DUALSPEED
 #define CONFIG_TWL4030_USB		1
 #define CONFIG_USB_ETHER
 #define CONFIG_USB_ETHER_RNDIS
 
-/* USB device configuration */
-#define CONFIG_USB_DEVICE		1
-#define CONFIG_USB_TTY			1
-#define CONFIG_SYS_CONSOLE_IS_IN_ENV	1
-
 /* USB EHCI */
 #define CONFIG_CMD_USB
 #define CONFIG_USB_EHCI