OvmfPkg: Copy the required CSM components from framework packages

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1811

This commit copies the exact:

Drivers:
* VideoDxe
* LegacyBiosDxe

Libraries:
* LegacyBootMaintUiLib
* LegacyBootManagerLib

Guid header files:
* Legacy Bios Guid
* LegacyDevOrder Guid

Protocol header files:
* Firmware Volume Protocol
* ISA ACPI Protocol
* ISA I/O Protocol
* Legacy BIOS Protocol
* Legacy BIOS Platform Protocol
* Legacy Interrupt Protocol
* VGA Mini Port Protocol

Framework header files (within IntelFrameworkPkg):
* FrameworkDxe.h
* Framework/BootScript.h
* Framework/DxeCis.h
* Framework/FirmwareVolumeHeader.h
* Framework/FirmwareVolumeImageFormat.h
* Framework/FrameworkInternalFormRepresentation.h
* Framework/Hob.h
* Framework/StatusCode.h

from IntelFramework[Module]Pkg to OvmfPkg/Csm/ folder.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: David Woodhouse <dwmw2@infradead.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

OvmfPkg/Csm/Include/Guid/LegacyDevOrder.h

@@ -0,0 +1,39 @@
+/** @file
+  Guid of a NV Variable which store the information about the
+  FD/HD/CD/NET/BEV order.
+
+Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __LEGACY_DEV_ORDER_VARIABLE_GUID_H__
+#define __LEGACY_DEV_ORDER_VARIABLE_GUID_H__
+
+///
+/// Name and Guid of a NV Variable which stores the information about the
+/// FD/HD/CD/NET/BEV order
+///
+#define EFI_LEGACY_DEV_ORDER_VARIABLE_GUID \
+  { \
+  0xa56074db, 0x65fe, 0x45f7, {0xbd, 0x21, 0x2d, 0x2b, 0xdd, 0x8e, 0x96, 0x52} \
+  }
+
+typedef UINT8 BBS_TYPE;
+
+#pragma pack(1)
+typedef struct {
+  BBS_TYPE  BbsType;
+  ///
+  /// Length = sizeof (UINT16) + sizeof (Data)
+  ///
+  UINT16    Length;
+  UINT16    Data[1];
+} LEGACY_DEV_ORDER_ENTRY;
+#pragma pack()
+
+#define VAR_LEGACY_DEV_ORDER L"LegacyDevOrder"
+
+extern EFI_GUID gEfiLegacyDevOrderVariableGuid;
+
+#endif