More cleanstep for Exchage apk.

Also added rm ...Email* again to make sure the email/exchange apks
will get a clean build.

Change-Id: I54d7d6fbe2d7990c68a44faadde6a3759f832d9f
diff --git a/CleanSpec.mk b/CleanSpec.mk
index e22bcc0..3d291da 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -44,6 +44,8 @@
 #$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
 #$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
 $(call add-clean-step, rm -rf $(OUT_DIR)/out/target/common/obj/APPS/Email*)
+$(call add-clean-step, rm -rf $(OUT_DIR)/out/target/common/obj/APPS/Email*)
+$(call add-clean-step, rm -rf $(OUT_DIR)/out/target/common/obj/APPS/Exchange*)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST