netd: softap: Add ieee80211n=1 parameter for hotspot

Change-Id: I73d862494c186a08066d8e3478667055bfc831a1
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/SoftapController.cpp b/SoftapController.cpp
index 20bab07..3e3c4cc 100644
--- a/SoftapController.cpp
+++ b/SoftapController.cpp
@@ -293,7 +293,8 @@
     }
 
     asprintf(&wbuf, "interface=%s\ndriver=nl80211\nctrl_interface="
-            "/data/misc/wifi/hostapd\nssid=%s\nchannel=6\nwmm_enabled=1\n", iface, ssid);
+            "/data/misc/wifi/hostapd\nssid=%s\nchannel=6\nieee80211n=1\nwmm_enabled=1\n",
+            iface, ssid);
 
     if (argc > 5) {
         if (!strcmp(argv[5], "wpa-psk")) {