AEM OpenCloud default dirs permissions to wide

The AEM OpenCloud default log dir `/var/log/shinesolutions` & default tmp dir has read & execution permissions for others. To avoid any exposure of sensible information to unauthorized users we should update the permissions to `0770` when creating the dirs.

https://github.com/shinesolutions/aem-aws-stack-provisioner/blob/master/manifests/pre-common.pp#L71-L89 