Add METADATA to xz-embedded: PublicDomain=UNENCUMBERED am: dbb9237e24

Change-Id: I6bbb983694bc6fecc2a5d708860ecc664d44cc26
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
+}