rtl8xxxu: Initial rtl8723bu chip identification

This provides initial detection of 8723bu devices, and selects the
correct firmware image to load.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
index 56c4e0a..dd4c563 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
@@ -34,7 +34,7 @@
 #define RTL8XXXU_MAX_REG_POLL		500
 #define	USB_INTR_CONTENT_LENGTH		56
 
-#define RTL8XXXU_OUT_ENDPOINTS		3
+#define RTL8XXXU_OUT_ENDPOINTS		4
 
 #define REALTEK_USB_READ		0xc0
 #define REALTEK_USB_WRITE		0x40