DuetPkg: Fix GCC error to avoid the duplicated global variable in SmbiosGenDxe

Update SmbiosGenDxe to use UefiHiiServicesLib.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19339 6f19259b-4bc3-4df7-8a09-765794883524

DuetPkg/SmbiosGenDxe/SmbiosGen.c

@@ -18,7 +18,6 @@ Abstract:
 **/
 
 #include "SmbiosGen.h"
-EFI_HII_DATABASE_PROTOCOL   *gHiiDatabase;
 extern UINT8                SmbiosGenDxeStrings[];
 EFI_SMBIOS_PROTOCOL         *gSmbios;
 EFI_HII_HANDLE              gStringHandle;
@@ -211,16 +210,6 @@ SmbiosGenEntrypoint (
   if (EFI_ERROR (Status)) {
     return Status;
   }
-
-  Status = gBS->LocateProtocol (
-                  &gEfiHiiDatabaseProtocolGuid,
-                  NULL,
-                  (VOID**)&gHiiDatabase
-                  );
-
-  if (EFI_ERROR (Status)) {
-    return Status;
-  }
   
   gStringHandle = HiiAddPackages (
                     &gEfiCallerIdGuid,

DuetPkg/SmbiosGenDxe/SmbiosGen.h

@@ -39,6 +39,7 @@ Abstract:
 #include <Library/DebugLib.h>
 #include <Library/BaseMemoryLib.h>
 #include <Library/MemoryAllocationLib.h>
+#include <Library/UefiHiiServicesLib.h>
 
 #define   PRODUCT_NAME                  L"DUET"
 #define   PRODUCT_VERSION               L"Beta"

DuetPkg/SmbiosGenDxe/SmbiosGen.inf

@@ -41,6 +41,7 @@
   UefiDriverEntryPoint
   BaseLib
   HiiLib
+  UefiHiiServicesLib
   
 [Sources]
   SmbiosGen.c