Adding awsapi in the require section of cloud.spec as it resolves issue with EC2 QUERY API Feature.

Moved the post awsapi section to the post management since it is trying to provide symb link before installing management server.

Signed-off-by: Pradeep <pradeep.soundararajan@citrix.com>
CLOUDSTACK-1267: Configure log4j in proper place so that it can be initialized correctly in KVM and system VM environment