arcfox: Inital device configuration

Change-Id: If7afc7cf58eadd1a5b6fbd0c2aea77f52cd8e34e
diff --git a/proprietary-files.txt b/proprietary-files.txt
new file mode 100644
index 0000000..f4a7d9b
--- /dev/null
+++ b/proprietary-files.txt
@@ -0,0 +1 @@
+# TODO: Bringup proprietary-files.txt