OVMF SEC: Modify to match new interface of reset vector module

Previously the interface to the SEC module was:
  ESI/RSI - SEC Core entry point
  EDI/RDI - PEI Core entry point
  EBP/RBP - Start of BFV

Now it is:
  RAX/EAX  Initial value of the EAX register
           (BIST: Built-in Self Test)
  DI       'BP': boot-strap processor, or
           'AP': application processor
  RBP/EBP  Address of Boot Firmware Volume (BFV)

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9572 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/Sec/Ia32/SecEntry.asm

@@ -25,16 +25,15 @@
 EXTERN SecCoreStartupWithStack:PROC
 
 ;
-;  SecCore Entry Point
+; SecCore Entry Point
 ;
-;  Processor is in flat protected mode
+; Processor is in flat protected mode
 ;
-;  @param  ESI  Pointer to SEC Core Entry Point (this function)
-;  @param  EDI  Pointer to PEI Core Entry Point
-;  @param  EBP  Pointer to the start of the Boot Firmware Volume
-;
-;  @return None
+; @param[in]  EAX   Initial value of the EAX register (BIST: Built-in Self Test)
+; @param[in]  DI    'BP': boot-strap processor, or 'AP': application processor
+; @param[in]  EBP   Pointer to the start of the Boot Firmware Volume
 ;
+; @return     None  This routine does not return
 ;
 _ModuleEntryPoint PROC PUBLIC
 
@@ -50,8 +49,6 @@ _ModuleEntryPoint PROC PUBLIC
     ; Call into C code
     ;
     push    eax
-    push    edi
-    push    esi
     push    ebp
     call    SecCoreStartupWithStack