P2P: Clear pending_pd_before_join on PD timeout

wpas_p2p_pd_before_join_timeout() needs to clear the
pending_pd_before_join flag to match other uses of this flag prior to
calling wpas_p2p_join_start(). Without this, the flag could be left set
which can cause following P2P operations to behave in unexpected ways.

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

wpa_supplicant/p2p_supplicant.c

@@ -2955,6 +2955,7 @@ static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, void *timeout_ctx)
 	struct wpa_supplicant *wpa_s = eloop_ctx;
 	if (!wpa_s->pending_pd_before_join)
 		return;
+	wpa_s->pending_pd_before_join = 0;
 	/*
 	 * Provision Discovery Response may have been lost - try to connect
 	 * anyway since we do not need any information from this PD.