NetworkPkg: Move network related header files from MdeModulePkg to NetworkPkg

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2196

Cc: Siyuan Fu <siyuan.fu@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Siyuan Fu <siyuan.fu@intel.com>

NetworkPkg/Include/Guid/Ip4IScsiConfigHii.h

@@ -0,0 +1,25 @@
+/** @file
+  GUIDs used as HII FormSet and HII Package list GUID in IP4 IScsiDxe driver.
+
+Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __IP4_ISCSI_CONFIG_HII_GUID_H__
+#define __IP4_ISCSI_CONFIG_HII_GUID_H__
+
+#define IP4_ISCSI_CONFIG_GUID \
+  { \
+    0x6456ed61, 0x3579, 0x41c9, { 0x8a, 0x26, 0x0a, 0x0b, 0xd6, 0x2b, 0x78, 0xfc } \
+  }
+
+#define ISCSI_CHAP_AUTH_INFO_GUID \
+  { \
+    0x786ec0ac, 0x65ae, 0x4d1b, {0xb1, 0x37, 0xd, 0x11, 0xa, 0x48, 0x37, 0x97} \
+  }
+
+extern EFI_GUID gIp4IScsiConfigGuid;
+extern EFI_GUID gIScsiCHAPAuthInfoGuid;
+
+#endif