Add METADATA to qemu: Apache2=NOTICE

Bug: 68860345
Bug: 69058154
Bug: 151953481

Test: no code changes
Merged-In: If3463471033aa6667af8ab4ee25cb885f26a3d0b
Change-Id: I03d0e5e4cb211aa664ae4ad3fcfb18eaab362de0
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..d97975c
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,3 @@
+third_party {
+  license_type: NOTICE
+}