wpa_supplicant: Use bss_id list for 'bss FIRST' command

Command 'bss FISRT' should use bss_id list, because 'bss NEXT-N' is using
bss_id list as well.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

wpa_supplicant/ctrl_iface.c

@@ -2657,7 +2657,7 @@ static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s,
 			}
 		}
 	} else if (os_strcmp(cmd, "FIRST") == 0)
-		bss = dl_list_first(&wpa_s->bss, struct wpa_bss, list);
+		bss = dl_list_first(&wpa_s->bss_id, struct wpa_bss, list_id);
 	else if (os_strncmp(cmd, "ID-", 3) == 0) {
 		i = atoi(cmd + 3);
 		bss = wpa_bss_get_id(wpa_s, i);