tools: ffs-aio-example: add missing wMaxPacketSize for HS descs

It's needed, to have more than 64 bytes of maxpacketsize.
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

tools/usb/ffs-aio-example/simple/device_app/aio_simple.c

@@ -103,12 +103,14 @@ static const struct {
 			.bDescriptorType = USB_DT_ENDPOINT,
 			.bEndpointAddress = 1 | USB_DIR_IN,
 			.bmAttributes = USB_ENDPOINT_XFER_BULK,
+			.wMaxPacketSize = htole16(512),
 		},
 		.bulk_source = {
 			.bLength = sizeof(descriptors.hs_descs.bulk_source),
 			.bDescriptorType = USB_DT_ENDPOINT,
 			.bEndpointAddress = 2 | USB_DIR_OUT,
 			.bmAttributes = USB_ENDPOINT_XFER_BULK,
+			.wMaxPacketSize = htole16(512),
 		},
 	},
 };