greybus: add es1_ap_desc.c to describe the ES1 USB device descriptors

static const u8 es1_dev_descriptor[] = {

	0x12,		/* __u8   bLength */

	0x01,		/* __u8   bDescriptorType; Device */

	0x00, 0x02	/* __le16 bcdUSB v2.0 */

	0x00,		/* __u8   bDeviceClass */

	0x00,		/* __u8   bDeviceClass */

	0x00,		/* __u8   bDeviceSubClass; */

	0x00,		/* __u8   bDeviceProtocol; */

	0x40,		/* __u8   bMaxPacketSize0; 2^64 = 512 Bytes */

	0xff, 0xff,	/* __le16 idVendor; 0xffff  made up for now */

	0x01, 0x00,	/* __le16 idProduct; 0x0001  made up for now */

	0x01, 0x00,	/* __le16 bcdDevice; ES1 */

	0x03,		/* __u8  iManufacturer; */

	0x02,		/* __u8  iProduct; */

	0x01,		/* __u8  iSerialNumber; */

	0x01		/* __u8  bNumConfigurations; */

};

static const u8 es1_config_descriptor[] = {

	/* one configuration */

	0x09,		/*  __u8   bLength; */

	0x02,		/*  __u8   bDescriptorType; Configuration */

	0x19, 0x00,	/*  __le16 wTotalLength; */

	0x01,		/*  __u8   bNumInterfaces; (1) */

	0x01,		/*  __u8   bConfigurationValue; */

	0x00,		/*  __u8   iConfiguration; */

	0xc0,		/*  __u8   bmAttributes;

				 Bit 7: must be set,

				     6: Self-powered,

				     5: Remote wakeup,

				     4..0: resvd */

	0x00,		/*  __u8  MaxPower; */

	/* one interface */

	0x09,		/*  __u8  if_bLength; */

	0x04,		/*  __u8  if_bDescriptorType; Interface */

	0x00,		/*  __u8  if_bInterfaceNumber; */

	0x00,		/*  __u8  if_bAlternateSetting; */

	0x02,		/*  __u8  if_bNumEndpoints; */

	0xff,		/*  __u8  if_bInterfaceClass; Vendor-specific */

	0xff,		/*  __u8  if_bInterfaceSubClass; Vendor-specific */

	0xff,		/*  __u8  if_bInterfaceProtocol; Vendor-specific */

	0x00,		/*  __u8  if_iInterface; */

	/* two endpoints */

	0x07,		/*  __u8   ep_bLength; */

	0x05,		/*  __u8   ep_bDescriptorType; Endpoint */

	0x81,		/*  __u8   ep_bEndpointAddress; IN Endpoint 1 */

	0x02,		/*  __u8   ep_bmAttributes; Bulk */

	0x40, 0x00,	/*  __le16 ep_wMaxPacketSize; 64??? */

	0x00		/*  __u8   ep_bInterval; */

	0x07,		/*  __u8   ep_bLength; */

	0x05,		/*  __u8   ep_bDescriptorType; Endpoint */

	0x02,		/*  __u8   ep_bEndpointAddress; Out Endpoint 2 */

	0x02,		/*  __u8   ep_bmAttributes; Bulk */

	0x40, 0x00,	/*  __le16 ep_wMaxPacketSize; 64??? */

	0x00		/*  __u8   ep_bInterval; */

};