Add METADATA to xz-embedded: PublicDomain=UNENCUMBERED am: dbb9237e24 am: ff3dce8e7f am: 17ddf52272 am: a08354784c am: 26dae8dca0

Change-Id: I31117ceb157a50209607d9c7d854c0bbc4b66be1
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
+}