Refactor sanitized library on-disk layout - Make.

This CL moves the location of ASAN-ified libraries on disk in the
following manner:
/data/lib* --> /data/asan/system/lib*
/data/vendor/* --> /data/asan/vendor/*

There are a couple of advantages to this, including better isolation
from other components, and more transparent linker renaming and
SELinux policies.

Bug: 36574794
Bug: 36674745
Test: m -j40 && SANITIZE_TARGET="address" m -j40 and the device
boots. All sanitized libraries are correctly located in /data/asan/*.

Change-Id: Ic6ba8e43e31df2ea92b85fd60f572823b6883ba2
diff --git a/CleanSpec.mk b/CleanSpec.mk
index acd5273..791439b 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -410,6 +410,10 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/lib*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/vendor/lib*)
 
+# Sanitized libraries now live in a different location.
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/lib*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/vendor/lib*)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************