Update UefiHiiLib to support new defined IFR related HII APIs.

Apply new defined IFR related HII APIs in PlatOverMngr, DriverSample, IScsiDxe and Setup drivers.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8066 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Include/Library/NewHiiLib.h

@@ -925,4 +925,32 @@ HiiUpdateForm (
   IN VOID            *EndOpcodeHandle     OPTIONAL
   );
 
+/**
+  Configure the buffer accrording to ConfigBody strings in the format of
+  <Length:4 bytes>, <Offset: 2 bytes>, <Width:2 bytes>, <Data:n bytes>.
+  This ConfigBody strings is generated by EDKII UEFI VfrCompiler for the default
+  values in a Form Set. The name of the ConfigBody strings is VfrMyIfrNVDataDefault0000
+  constructed following this rule: 
+   "Vfr" + varstore.name + "Default" + defaultstore.attributes.
+  Check the generated C file in Output for details.
+
+  @param  Buffer                 the start address of buffer.
+  @param  BufferSize             the size of buffer.
+  @param  Number                 the number of the ConfigBody strings.
+  @param  ...                    the ConfigBody strings
+
+  @retval EFI_BUFFER_TOO_SMALL   the BufferSize is too small to operate.
+  @retval EFI_INVALID_PARAMETER  Buffer is NULL or BufferSize is 0.
+  @retval EFI_SUCCESS            Operation successful.
+
+**/
+EFI_STATUS
+EFIAPI
+IfrLibExtractDefault(
+  IN VOID                         *Buffer,
+  IN UINTN                        *BufferSize,
+  UINTN                           Number,
+  ...
+  );
+
 #endif