NetworkPkg/HttpDxe: Refactor TlsCreateChild

- Use HTTP instance as the parameter for TlsCreateChild function.
- Install TLS protocol on the HTTP instance thats create TLS child.

Signed-off-by: Abner Chang <abner.chang@amd.com>
Cc: Saloni Kasbekar <saloni.kasbekar@intel.com>
Cc: Zachary Clark-williams <zachary.clark-williams@intel.com>
Cc: Michael Brown <mcb30@ipxe.org>
Cc: Nickle Wang <nicklew@nvidia.com>
Cc: Igor Kulchytskyy <igork@ami.com>
Reviewed-by: Michael Brown <mcb30@ipxe.org>
Reviewed-by: Saloni Kasbekar <saloni.kasbekar@intel.com>

NetworkPkg/HttpDxe/HttpProto.h

@@ -3,6 +3,7 @@
 
 Copyright (c) 2015 - 2021, Intel Corporation. All rights reserved.<BR>
 (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
+Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -171,7 +172,7 @@ typedef struct _HTTP_PROTOCOL {
   BOOLEAN                           UseHttps;
 
   EFI_SERVICE_BINDING_PROTOCOL      *TlsSb;
-  EFI_HANDLE                        TlsChildHandle; /// Tls ChildHandle
+  BOOLEAN                           TlsAlreadyCreated;
   TLS_CONFIG_DATA                   TlsConfigData;
   EFI_TLS_PROTOCOL                  *Tls;
   EFI_TLS_CONFIGURATION_PROTOCOL    *TlsConfiguration;