Fix docs building
We need graphviz for docs building, use "doc" tag in bindep for it.
This is needed with updated jobs that look for doc tags.
Change-Id: Idc329ab113761061678c9bd31485ac5e18273e23
diff --git a/bindep.txt b/bindep.txt
index 85254b4..3dcc3e7 100644
--- a/bindep.txt
+++ b/bindep.txt
@@ -8,7 +8,7 @@
zookeeperd [platform:dpkg]
build-essential [platform:dpkg]
gcc [platform:rpm]
-graphviz [test]
+graphviz [doc]
libssl-dev [platform:dpkg]
openssl-devel [platform:rpm]
libffi-dev [platform:dpkg]