Update cleanspec to remove libclcore.bc.

Change-Id: I54cdf96b92d274a73db6c6370defb4721a7f37c1
diff --git a/CleanSpec.mk b/CleanSpec.mk
index df602df..9983497 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -52,6 +52,7 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libclcore.bc_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libclcore.bc_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libclcore.bc_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libclcore.bc_intermediates)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST