Fix the issue with schedule backup of internal DB 

that failed due to calling LogFile.verify_log_depot_settings that has been removed in https://github.com/ManageIQ/manageiq/pull/908.

https://bugzilla.redhat.com/show_bug.cgi?id=1173213
Cool. but it's still backwards to me.  I feel like what you are looking up should be the key, so `{"smb" => "FileDepotSmb"}`