Exposing Context Hub service.

Adding the Context hub service. This is the service that exposes
the context hub HAL to the system. The API exposed is a System API.

Change-Id: I854141714ecd21f6386e6b15b7bc9a997483ccf6
diff --git a/core/jni/Android.mk b/core/jni/Android.mk
index 623b603..8ef1a22 100644
--- a/core/jni/Android.mk
+++ b/core/jni/Android.mk
@@ -161,6 +161,7 @@
     android_hardware_UsbDevice.cpp \
     android_hardware_UsbDeviceConnection.cpp \
     android_hardware_UsbRequest.cpp \
+    android_hardware_location_ContextHubService.cpp \
     android_hardware_location_ActivityRecognitionHardware.cpp \
     android_util_FileObserver.cpp \
     android/opengl/poly_clip.cpp.arm \