brcmfmac: Fix for unable to return to visible SSID

Unable to change back to visiable SSID because there is
no disable hidden ssid routine.
Signed-off-by: Soontak Lee <soontak.lee@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200618160739.21457-2-chi-hsien.lin@cypress.com

drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c

@@ -4835,12 +4835,14 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
 			goto exit;
 		}
 
-		if (settings->hidden_ssid) {
-			err = brcmf_fil_iovar_int_set(ifp, "closednet", 1);
-			if (err) {
-				bphy_err(drvr, "closednet error (%d)\n", err);
-				goto exit;
-			}
+		err = brcmf_fil_iovar_int_set(ifp, "closednet",
+					      settings->hidden_ssid);
+		if (err) {
+			bphy_err(drvr, "%s closednet error (%d)\n",
+				 settings->hidden_ssid ?
+				 "enabled" : "disabled",
+				 err);
+			goto exit;
 		}
 
 		brcmf_dbg(TRACE, "AP mode configuration complete\n");