Prepare for bindep

Change-Id: Ie2ffcdff5f31cec8932afe2261a9f44fa2555845
diff --git a/other-requirements.txt b/other-requirements.txt
new file mode 100644
index 0000000..ba84cc5
--- /dev/null
+++ b/other-requirements.txt
@@ -0,0 +1 @@
+python-yaml