build/core: Create means of ignoring subdir layer for packages.

  An external resource package that acts as a secondary framework
  resource should be presented in system/framework similarily to
  the framework-res module.

Change-Id: Ie4110a184cd7262035110a6a04bb7ea91e7a42b0

core/base_rules.mk

@@ -181,7 +181,7 @@ ifneq (true,$(LOCAL_UNINSTALLABLE_MODULE))
   # Apk and its attachments reside in its own subdir.
   ifeq ($(LOCAL_MODULE_CLASS),APPS)
   # framework-res.apk doesn't like the additional layer.
-  ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
+  ifeq ($(filter true,$(LOCAL_NO_STANDARD_LIBRARIES) $(LOCAL_IGNORE_SUBDIR)),)
     my_module_path := $(my_module_path)/$(LOCAL_MODULE)
   endif
   endif