Rebuild target object files with new GCC 4.4.0 toolchain.

Bug: 2139334
diff --git a/cleanspec.mk b/cleanspec.mk
index 073efbe..d529113 100644
--- a/cleanspec.mk
+++ b/cleanspec.mk
@@ -101,6 +101,7 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST