Add METADATA to dlmalloc: CC0+PublicDomain=UNENCUMBERED am: e23e758a2b

Change-Id: Ib358ab90075724c8ce2c86d8ecdd7c86e5c5d452
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..313792c
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,3 @@
+third_party {
+  license_type: UNENCUMBERED
+}