Use legacy AAPT2 to ignore file naming warning.

AAPT2 does not allow file names with periods other than in the
extension, such as drawable_album_border_large.1.png.flat.

Change-Id: I49fbf85b9ddbe4c8790f9390dfd7cb11ba2da2df
diff --git a/fmapp2/Android.mk b/fmapp2/Android.mk
index a98adb5..d6c206b 100644
--- a/fmapp2/Android.mk
+++ b/fmapp2/Android.mk
@@ -31,6 +31,7 @@
 LOCAL_JNI_SHARED_LIBRARIES := libqcomfm_jni
 LOCAL_JAVA_LIBRARIES := qcom.fmradio
 LOCAL_PRIVATE_PLATFORM_APIS := true
+LOCAL_AAPT_FLAGS += --legacy
 include $(BUILD_PACKAGE)
 
 endif