Clean update API name for ASM function.

Add FSP_INFO_HEADER_SIGNATURE and FSP_INFO_EXTENDED_HEADER_SIGNATURE.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <Jiewen.Yao@intel.com> 
Reviewed-by: "Ma, Maurice" <maurice.ma@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17271 6f19259b-4bc3-4df7-8a09-765794883524

IntelFspPkg/Include/FspInfoHeader.h

@@ -29,6 +29,8 @@
 
 #define  OFFSET_IN_FSP_INFO_HEADER(x)  (UINT32)&((FSP_INFO_HEADER *)(UINTN)0)->x
 
+#define FSP_INFO_HEADER_SIGNATURE  SIGNATURE_32 ('F', 'S', 'P', 'H')
+
 #pragma pack(1)
 
 typedef struct  {
@@ -124,6 +126,8 @@ typedef struct  {
 ///
 /// Below structure is added in FSP version 2
 ///
+#define FSP_INFO_EXTENDED_HEADER_SIGNATURE  SIGNATURE_32 ('F', 'S', 'P', 'E')
+
 typedef struct  {
   ///
   /// Byte 0x00: Signature ('FSPE') for the FSP Extended Information Header