staging: rtl8712: remove the leading spaces

This patch fixes the checkpatch warning, removing leading spaces to make
sure that tabstop starts a new line.
Signed-off-by: Li Mingshuo <linuxli@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl871x_xmit.h

@@ -148,8 +148,8 @@ struct xmit_frame {
 	_pkt *pkt;
 	int frame_tag;
 	struct _adapter *padapter;
-	 u8 *buf_addr;
-	 struct xmit_buf *pxmitbuf;
+	u8 *buf_addr;
+	struct xmit_buf *pxmitbuf;
 	u8 *mem_addr;
 	u16 sz[8];
 	struct urb *pxmit_urb[8];