Wifi hotspot stack initial hook up

Add a dummy wifi hotspot service for futher development use. This is to
resolve the different between master branch and kwd branch, such that future
development can go into kwd and being auto-merged to master.

bug: 5485670
Change-Id: Ica58de445dd050a9f0b817f8e4accaa2478299c5
diff --git a/Android.mk b/Android.mk
index 33e64d0..92eeec5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -288,6 +288,7 @@
 	telephony/java/com/android/internal/telephony/ISms.aidl \
 	telephony/java/com/android/internal/telephony/IWapPushManager.aidl \
 	wifi/java/android/net/wifi/IWifiManager.aidl \
+	wifi/java/android/net/wifi/hotspot/IWifiHotspotManager.aidl \
 	wifi/java/android/net/wifi/p2p/IWifiP2pManager.aidl \
 	packages/services/PacProcessor/com/android/net/IProxyService.aidl \
 	packages/services/Proxy/com/android/net/IProxyCallback.aidl \