Update cleanspec to fix build issue

Change-Id: I5f26adbf30da682ada1288557ab600850b2ba681
diff --git a/CleanSpec.mk b/CleanSpec.mk
index e851820..c132395 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -48,6 +48,8 @@
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Launcher2_intermediates)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Launcher2_intermediates)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Launcher2_intermediates)
+$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Launcher2_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Launcher2.apk)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST