staging: rtl8723au: core: Add consistent spacing around '&'

This patch fixes checkpatch.pl error in file rtw_ap.c
ERROR: need consistent spacing around '&' (ctx:WxV)

Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rtl8723au/core/rtw_ap.c b/drivers/staging/rtl8723au/core/rtw_ap.c
index 5748da4..35908ba 100644
--- a/drivers/staging/rtl8723au/core/rtw_ap.c
+++ b/drivers/staging/rtl8723au/core/rtw_ap.c
@@ -299,7 +299,7 @@
 		int ret = _FAIL;
 
 		psta = chk_alive_list[i];
-		if (!(psta->state &_FW_LINKED))
+		if (!(psta->state & _FW_LINKED))
 			continue;
 
 		if (psta->state & WIFI_SLEEP_STATE)