Staging: rtl8192u: r8192U_wx.c Fixed a code-style error about trailing whitespace

Fixed the following error reported by running checkpatch.pl

ERROR: trailing whitespace
Signed-off-by: Chaitanya Hazarey <c@24.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8192U_wx.c

@@ -952,7 +952,7 @@ static const struct iw_priv_args r8192_private_args[] = {
 
 
 static iw_handler r8192_private_handler[] = {
-	r8192_wx_set_crcmon, 
+	r8192_wx_set_crcmon,
 	r8192_wx_set_scan_type,
 	r8192_wx_set_rawtx,
 	r8192_wx_force_reset,