mac80211_hwsim: fixup for tsf setting

Last patch I sent failed to take into account the offset of each phy.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 2d2bfce..3edd473 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -694,6 +694,7 @@
 		    ieee80211_is_probe_resp(mgmt->frame_control))
 			mgmt->u.beacon.timestamp = cpu_to_le64(
 				rx_status.mactime +
+				(data->tsf_offset - data2->tsf_offset) +
 				24 * 8 * 10 / txrate->bitrate);
 
 		memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));