Add NOTICE and MODULE_LICENSE files.

Bug: http://b/25479535
Change-Id: Id9f6cb66cbf312682310b20fbb396553de446081
diff --git a/MODULE_LICENSE_GPL b/MODULE_LICENSE_GPL
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_GPL
diff --git a/NOTICE b/NOTICE
new file mode 120000
index 0000000..d24842f
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1 @@
+COPYING
\ No newline at end of file