SourceLevelDebugPkg: Replace Opcode with the corresponding instructions.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3790

Replace Opcode with the corresponding instructions.
The code changes have been verified with CompareBuild.py tool, which
can be used to compare the results of two different EDK II builds to
determine if they generate the same binaries.
(tool link: https://github.com/mdkinney/edk2/tree/sandbox/CompareBuild)

Signed-off-by: Jason Lou <yun.lou@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>

SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/X64/AsmFuncs.nasm

@@ -1,6 +1,6 @@
 ;------------------------------------------------------------------------------
 ;
-; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2016 - 2022, Intel Corporation. All rights reserved.<BR>
 ; SPDX-License-Identifier: BSD-2-Clause-Patent
 ;
 ; Module Name:
@@ -293,7 +293,7 @@ NoExtrPush:
     rep     stosq
     pop     rcx
     mov     rdi, rsp
-    db 0xf, 0xae, 00000111y ;fxsave [rdi]
+    fxsave  [rdi]
 
     ;; save the exception data
     push    qword [rbp + 16]
@@ -314,7 +314,7 @@ NoExtrPush:
     add     rsp, 8
 
     mov     rsi, rsp
-    db 0xf, 0xae, 00001110y ; fxrstor [rsi]
+    fxrstor [rsi]
     add     rsp, 512
 
     ;; UINT64  Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;