Change androidfw tests to native test target

Change the androidfw tests to the BUILD_NATIVE_TEST target so they end
up in the correct directory. Also remove the module tags and C include
paths. The include paths are automatically added when the library is
used.

Change-Id: Ia47f6c25130c5068b89d6dc067e5d9c714a6d08a
diff --git a/libs/androidfw/tests/Android.mk b/libs/androidfw/tests/Android.mk
index 39009b8..4ae23ec 100644
--- a/libs/androidfw/tests/Android.mk
+++ b/libs/androidfw/tests/Android.mk
@@ -10,36 +10,25 @@
     ObbFile_test.cpp
 
 shared_libraries := \
-	libandroidfw \
-	libcutils \
-	libutils \
-	libbinder \
-	libui \
-	libstlport \
-	libskia
+    libandroidfw \
+    libcutils \
+    libutils \
+    libbinder \
+    libui \
+    libstlport \
+    libskia
 
 static_libraries := \
-	libgtest \
-	libgtest_main
-
-c_includes := \
-    bionic \
-    bionic/libstdc++/include \
-    external/gtest/include \
-    external/stlport/stlport \
-    external/skia/include/core
-
-module_tags := eng tests
+    libgtest \
+    libgtest_main
 
 $(foreach file,$(test_src_files), \
     $(eval include $(CLEAR_VARS)) \
     $(eval LOCAL_SHARED_LIBRARIES := $(shared_libraries)) \
     $(eval LOCAL_STATIC_LIBRARIES := $(static_libraries)) \
-    $(eval LOCAL_C_INCLUDES := $(c_includes)) \
     $(eval LOCAL_SRC_FILES := $(file)) \
     $(eval LOCAL_MODULE := $(notdir $(file:%.cpp=%))) \
-    $(eval LOCAL_MODULE_TAGS := $(module_tags)) \
-    $(eval include $(BUILD_EXECUTABLE)) \
+    $(eval include $(BUILD_NATIVE_TEST)) \
 )
 
 # Build the manual test programs.