Add CleanSpec to hardware/interfaces. am: e468cf8004
am: 7780055fd1

Change-Id: I5d5f2618fc6d18034439d3cb1c31290d825f1c2e
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 212c8b1..11846f6 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -52,3 +52,4 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/hw/android.hardware.bluetooth*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib64/hw/android.hardware.bluetooth*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/etc/init/android.hardware.bluetooth*)
+$(call add-clean-step, rm -rf $(OUT)/soong/.intermediates/)