Fix missing key

Signed-off-by: Prasanna Santhanam <tsp@apache.org>
(cherry picked from commit d1c01a79a5d75fdc184e385d23c59b6fd283d894)
CLOUDSTACK-3886: check in for review request https://reviews.apache.org/r/13008/
CLOUDSTACK-4157 Failure to add zone wide primary storage pool is leaving storage pool in database

Signed-off-by: Sateesh Chodapuneedi <sateesh@apache.org>