Add LocationCompleter to SiteRecovery cmdlets

Author: azdevxps

src/ResourceManager/SiteRecovery/Commands.SiteRecovery/Vault/NewAzureSiteRecoveryVault.cs

@@ -45,6 +45,7 @@ public class CreateAzureSiteRecoveryVault : SiteRecoveryCmdletBase
         /// Gets or sets the location of the vault
         /// </summary>
         [Parameter(Mandatory = true)]
+        [LocationCompleter("Microsoft.SiteRecovery/SiteRecoveryVault")]
         [ValidateNotNullOrEmpty]
         public string Location { get; set; }