Update clean-oat to remove unstripped versions with symbols

Change-Id: I0c9871869110f71cfa29dfdd0b514956e3dbca65
diff --git a/Android.mk b/Android.mk
index 16a2c12..a20ee9f 100644
--- a/Android.mk
+++ b/Android.mk
@@ -79,6 +79,7 @@
 	rm -f $(HOST_OUT_JAVA_LIBRARIES)/*.art
 	rm -f $(TARGET_OUT_JAVA_LIBRARIES)/*.oat
 	rm -f $(TARGET_OUT_JAVA_LIBRARIES)/*.art
+	rm -f $(TARGET_OUT_UNSTRIPPED)/system/framework/*.oat
 	rm -f $(TARGET_OUT_APPS)/*.oat
 	rm -f $(TARGET_OUT_INTERMEDIATES)/JAVA_LIBRARIES/*_intermediates/javalib.jar.oat
 	rm -f $(TARGET_OUT_INTERMEDIATES)/APPS/*_intermediates/package.apk.oat