P2P: Allow persistent group determination based on Beacon frame

P2P IE may be available from a Beacon frame from a GO even if we have
not yet received a Probe Response frame with P2P IE from that GO. Since
all the needed information for determining the GO's P2P Device Address
and group capabilities are available, use that information instead of
displaying incomplete group information.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

wpa_supplicant/p2p_supplicant.c

@@ -535,6 +535,9 @@ static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
 	}
 
 	p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
+	if (p2p == NULL)
+		p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
+							 P2P_IE_VENDOR_TYPE);
 	if (p2p == NULL) {
 		wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 			   "group is persistent - BSS " MACSTR