Add a clean step for LatinIME native lib.

This is corresponding to recent changes made for LatinIME native lib
builds, such as switching to libc++.

Change-Id: I8e0b35f08dbcb878bd33557dd3087ddfbc10b641

CleanSpec.mk

@@ -51,6 +51,7 @@ $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libjni_latinim
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libjni_latinime_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libjni_latinime_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libjni_latinime_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libjni_latinime_intermediates)
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************