DynamicTablesPkg: Re-order GicItsIdentifierArray struct

The structure is not correctly placed in the file. Move it
so it follows the EARM_OBJECT_ID enum order.

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>

DynamicTablesPkg/Include/ArmNameSpaceObjects.h

@@ -1,6 +1,6 @@
 /** @file
 
-  Copyright (c) 2017 - 2020, Arm Limited. All rights reserved.<BR>
+  Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>
 
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
@@ -465,16 +465,6 @@ typedef struct CmArmItsGroupNode {
   CM_OBJECT_TOKEN   ItsIdToken;
 } CM_ARM_ITS_GROUP_NODE;
 
-/** A structure that describes the
-    GIC ITS Identifiers for an ITS Group node.
-
-    ID: EArmObjGicItsIdentifierArray
-*/
-typedef struct CmArmGicItsIdentifier {
-  /// The ITS Identifier
-  UINT32  ItsId;
-} CM_ARM_ITS_IDENTIFIER;
-
 /** A structure that describes the
     Named component node for the Platform.
 
@@ -636,6 +626,16 @@ typedef struct CmArmPmcgNode {
   CM_OBJECT_TOKEN   ReferenceToken;
 } CM_ARM_PMCG_NODE;
 
+/** A structure that describes the
+    GIC ITS Identifiers for an ITS Group node.
+
+    ID: EArmObjGicItsIdentifierArray
+*/
+typedef struct CmArmGicItsIdentifier {
+  /// The ITS Identifier
+  UINT32  ItsId;
+} CM_ARM_ITS_IDENTIFIER;
+
 /** A structure that describes the
     ID Mappings for the Platform.