usb: udc: add udc.h include file

Move common definitions to udc.h
This allows musb_udc.h to be removed as well.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
diff --git a/include/usb/pxa27x_udc.h b/include/usb/pxa27x_udc.h
index 7fdbe2a..7eaa000 100644
--- a/include/usb/pxa27x_udc.h
+++ b/include/usb/pxa27x_udc.h
@@ -22,35 +22,11 @@
 
 /* Endpoint parameters */
 #define MAX_ENDPOINTS		4
-#define EP_MAX_PACKET_SIZE	64
 
 #define EP0_MAX_PACKET_SIZE     16
+
 #define UDC_OUT_ENDPOINT        0x02
-#define UDC_OUT_PACKET_SIZE     EP_MAX_PACKET_SIZE
 #define UDC_IN_ENDPOINT         0x01
-#define UDC_IN_PACKET_SIZE      EP_MAX_PACKET_SIZE
 #define UDC_INT_ENDPOINT        0x05
-#define UDC_INT_PACKET_SIZE     EP_MAX_PACKET_SIZE
-#define UDC_BULK_PACKET_SIZE    EP_MAX_PACKET_SIZE
-
-void udc_irq(void);
-/* Flow control */
-void udc_set_nak(int epid);
-void udc_unset_nak(int epid);
-
-/* Higher level functions for abstracting away from specific device */
-int udc_endpoint_write(struct usb_endpoint_instance *endpoint);
-
-int  udc_init(void);
-
-void udc_enable(struct usb_device_instance *device);
-void udc_disable(void);
-
-void udc_connect(void);
-void udc_disconnect(void);
-
-void udc_startup_events(struct usb_device_instance *device);
-void udc_setup_ep(struct usb_device_instance *device,
-	 unsigned int ep, struct usb_endpoint_instance *endpoint);
 
 #endif