Fixing build

Author: mkherani

src/ResourceManager/RecoveryServices.Backup/Commands.RecoveryServices.Backup.Providers/Providers/DpmPsBackupProvider.cs

@@ -91,7 +91,7 @@ public ProtectionPolicyResponse ModifyPolicy()
 
             BackupEngineListQueryParams queryParams = new BackupEngineListQueryParams();
 
-            queryParams.ProviderType = ProviderType.DPM.ToString();
+            queryParams.BackupManagementType = Microsoft.Azure.Management.RecoveryServices.Backup.Models.BackupManagementType.DPM.ToString();
 
             var listResponse = HydraAdapter.ListBackupEngines(queryParams);