How to retrieve HII form's default value

[<methavanitpong.pipat@socionext.com>]

Hi,

I'm working on changing SynQuacer/PlatformDxe initial HII configuration. 

In the current implementation, SynQuacerPlatformSettings HII variable doesn't set its initial value from PcdPlatfromSettings. 

* PcdPlatformSettings is initially set with value in dsc at build time

    * https://github.com/tianocore/edk2-platforms/blob/master/Platform/Socionext/DeveloperBox/DeveloperBox.dsc#L439

* SynQuacerPlatformSettings is initially set to zeros at run time

    * https://github.com/tianocore/edk2-platforms/blob/master/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.c#L246

They are unsync, but are both initially assigned to 0 independently.

What I want to do with this issue is

* Set initial SynQuacerPlatformSettings value from its
  SYNQUACER_PLATFORM_FORMSET_GUID form's default value
* Set initial PcdPlatformSettings value from its
  SYNQUACER_PLATFORM_FORMSET_GUID form's default value

Could anyone give me an advice on retrieving default value from a HII form and assign in C and DSC files?


Thanks,
--
Pipat Methavanitpong
Software Developer, S-Project 3
Socionext Inc.