Prepare for bindep

Change-Id: I48e7248a0f0838f1c0b86791cf7e0042100b3a49
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