staging: rtl8188eu: fix indentation error

Fixes a 'code indent should use tabs where possible' checkpatch code
style error by changing whitespace into tabs.
Signed-off-by: NRemco Verhoef <remco@dutchcoders.io>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c

@@ -58,7 +58,7 @@ static void process_link_qual(struct adapter *padapter,
 }
 
 void rtl8188e_process_phy_info(struct adapter *padapter,
-		               struct recv_frame *precvframe)
+			       struct recv_frame *precvframe)
 {
 	/*  Check RSSI */
 	process_rssi(padapter, precvframe);