[patch] MdeModulePkg/HiiDB: Fix incorrect structure convention for checkbox

[Dandan Bi <dandan.bi@intel.com>]

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1224

When covert IFR binary to EFI_IFR_CHECKBOX structure,
Current code has following incorrect code logic:
IfrCheckBox = (EFI_IFR_CHECKBOX *) (IfrOpHdr + 1);
The correct one should be:
IfrCheckBox = (EFI_IFR_CHECKBOX *) IfrOpHdr;

This patch is to fix this bug.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
---
 MdeModulePkg/Universal/HiiDatabaseDxe/Database.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/Database.c b/MdeModulePkg/Universal/HiiDatabaseDxe/Database.c
index 45448c5198..664687796f 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/Database.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/Database.c
@@ -896,11 +896,11 @@ UpdateDefaultSettingInFormPackage (
       break;
     case EFI_IFR_CHECKBOX_OP:
       IfrScope         = IfrOpHdr->Scope;
       IfrQuestionType  = IfrOpHdr->OpCode;
       IfrQuestionHdr   = (EFI_IFR_QUESTION_HEADER *) (IfrOpHdr + 1);
-      IfrCheckBox      = (EFI_IFR_CHECKBOX *) (IfrOpHdr + 1);
+      IfrCheckBox      = (EFI_IFR_CHECKBOX *) IfrOpHdr;
       EfiVarStoreIndex = IsEfiVarStoreQuestion (IfrQuestionHdr, EfiVarStoreList, EfiVarStoreNumber);
       Width            = sizeof (BOOLEAN);
       if (EfiVarStoreIndex < EfiVarStoreNumber) {
         for (Index = 0; Index < DefaultIdNumber; Index ++) {
           if (DefaultIdList[Index] == EFI_HII_DEFAULT_CLASS_STANDARD) {
-- 
2.18.0.windows.1