MdePkg BaseLib: Convert Ia32/ReadGdtr.asm to NASM

The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
Ia32/ReadGdtr.asm to Ia32/ReadGdtr.nasm

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>

MdePkg/Library/BaseLib/BaseLib.inf

@@ -231,6 +231,7 @@
   Ia32/ReadLdtr.asm | INTEL 
   Ia32/ReadIdtr.nasm| INTEL
   Ia32/ReadIdtr.asm | INTEL 
+  Ia32/ReadGdtr.nasm| INTEL
   Ia32/ReadGdtr.asm | INTEL 
   Ia32/ReadTr.asm | INTEL 
   Ia32/ReadSs.asm | INTEL 

MdePkg/Library/BaseLib/Ia32/ReadGdtr.nasm

@@ -0,0 +1,38 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   ReadGdtr.Asm
+;
+; Abstract:
+;
+;   AsmReadGdtr function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; InternalX86ReadGdtr (
+;   OUT IA32_DESCRIPTOR  *Gdtr
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalX86ReadGdtr)
+ASM_PFX(InternalX86ReadGdtr):
+    mov     eax, [esp + 4]
+    sgdt    [eax]
+    ret
+