wpa_supplicant: Put upper bound on initial scan time delay

This makes stations associate much faster when using lots of stations.
In addition, this avoids delaying the initial scan continuously for
dynamic interface removal/addition cases.

Signed-hostap: Ben Greear <greearb@candelatech.com>

wpa_supplicant/wpa_supplicant.c

@@ -2687,9 +2687,10 @@ int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
 			interface_count = 0;
 		}
 		if (!wpa_s->p2p_mgmt &&
-		    wpa_supplicant_delayed_sched_scan(wpa_s, interface_count,
+		    wpa_supplicant_delayed_sched_scan(wpa_s,
+						      interface_count % 3,
 						      100000))
-			wpa_supplicant_req_scan(wpa_s, interface_count,
+			wpa_supplicant_req_scan(wpa_s, interface_count % 3,
 						100000);
 		interface_count++;
 	} else