Adding CleanSpec for adding BOOTCLASSPATH to ims-common.jar

Bug: 15616246
Change-Id: Idce2fb20943f4d4ba6dd66f95f9f5bbd9caefb46
diff --git a/CleanSpec.mk b/CleanSpec.mk
index a967412..ec0533d 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -270,6 +270,9 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/*)
 
+# ims-common.jar added to BOOTCLASSPATH
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/ETC/init.environ.rc_intermediates)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************