Run ansible-lint from config's parent dir

ansible-lint doesn't find all of our configs unless it's run in just
this way.

Change-Id: I98c66fe4f4fb4a8d95b8ee03f8d06dcb019f30ae

preupload-hooks/ansible-checks.sh

diff --git a/preupload-hooks/ansible-checks.sh b/preupload-hooks/ansible-checks.sh
index 4b1a1b6..69d650b 100755
--- a/preupload-hooks/ansible-checks.sh
+++ b/preupload-hooks/ansible-checks.sh
@@ -25,4 +25,5 @@
 fi
 
 # Run ansible checks. Just lint for now
-ansible-lint $ANSIBLE_PATH
+cd $(dirname ${ANSIBLE_PATH})
+ansible-lint $(basename ${ANSIBLE_PATH})