Fix MdbDiskLatency setting for mailbox migration

Updated the MdbDiskLatency setting to use DiskWriteLatency section for mailbox moves. Reason: the keyword MdbDiskLatency is not an available option for setting an overwrite as section parameter in https://O365Exchange.visualstudio.com/DefaultCollection/O365%20Core/_git/ea6505db-e821-4d10-8ea4-191e3a962f12?path=%2fsources%2fdev%2fWorkloadManagement%2fsrc%2fWorkloadManagement%2fWorkloadManagement.settings.ini&version=GBmaster

Author: nourdinb

Exchange/ExchangeServer/migration/mailboxes-stalled-during-migration.md

@@ -55,7 +55,7 @@ New-SettingOverride -Name "MdbReplication" -Component WorkloadManagement -Sectio
 New-SettingOverride -Name "CiAgeOfLastNotification" -Component WorkloadManagement -Section CiAgeOfLastNotification -Parameters @("MaxConcurrency=$limit") -Reason "Allow more simultaneous mailbox moves"
 New-SettingOverride -Name "MdbAvailability" -Component WorkloadManagement -Section MdbAvailability -Parameters @("MaxConcurrency=$limit") -Reason "Allow more simultaneous mailbox moves"
 New-SettingOverride -Name "DiskLatency" -Component WorkloadManagement -Section DiskLatency -Parameters @("MaxConcurrency=$limit") -Reason "Allow more simultaneous mailbox moves"
-New-SettingOverride -Name "MdbDiskLatency" -Component WorkloadManagement -Section MdbDiskLatency -Parameters @("MaxConcurrency=$limit") -Reason "Allow more simultaneous mailbox moves"
+New-SettingOverride -Name "MdbDiskLatency" -Component WorkloadManagement -Section MdbDiskWriteLatency -Parameters @("MaxConcurrency=$limit") -Reason "Allow more simultaneous mailbox moves"
 ```
 
 To further update the WLM limit, run the following commands (this example sets the WLM limit to 35):