Update the test output path.

In order for the automated test to pick up the test.
The output must be in /data/nativetest.

Change-Id: I453805a1d186fec014e34b3d37a1e8bc62b2a5ac
diff --git a/tests/camera2/Android.mk b/tests/camera2/Android.mk
index 3daf9b8..69a983c 100644
--- a/tests/camera2/Android.mk
+++ b/tests/camera2/Android.mk
@@ -45,4 +45,4 @@
 LOCAL_MODULE:= camera2_test
 LOCAL_MODULE_TAGS := tests
 
-include $(BUILD_EXECUTABLE)
+include $(BUILD_NATIVE_TEST)