brcmfmac: fix bug in determining phy bands.

This patch fixes a bug in routine where phy bands are determined.
Reviewed-by: NArend Van Spriel <arend@broadcom.com>
Signed-off-by: NHante Meuleman <meuleman@broadcom.com>
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c

@@ -4539,7 +4539,7 @@ static s32 wl_update_wiphybands(struct brcmf_cfg80211_priv *cfg_priv)
 		return err;
 	}
 
-	phy = ((char *)&phy_list)[1];
+	phy = ((char *)&phy_list)[0];
 	WL_INFO("%c phy\n", phy);
 	if (phy == 'n' || phy == 'a') {
 		wiphy = cfg_to_wiphy(cfg_priv);