Updated auto-gen script to accept cache for policy values

[kuqin12]

Preface

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Description

This change adds a set of getter functions that accepts a caller designated buffer for cached configuration policy. This will avoid the direct usage of updating global variable does not work (i.e. the module is XIP).

Fixes #243.

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• Impacts functionality?
  • Functionality - Does the change ultimately impact how firmware functions?
  • Examples: Add a new library, publish a new PPI, update an algorithm, ...
• Impacts security?
  • Security - Does the change have a direct security impact on an application,
    flow, or firmware?
  • Examples: Crypto algorithm change, buffer overflow fix, parameter
    validation improvement, ...
• Breaking change?
  • Breaking change - Will anyone consuming this change experience a break
    in build or boot behavior?
  • Examples: Add a new library class, move a module to a different repo, call
    a function in a new library class in a pre-existing module, ...
• Includes tests?
  • Tests - Does the change include any explicit test code?
  • Examples: Unit tests, integration tests, robot tests, ...
• Includes documentation?
  • Documentation - Does the change contain explicit documentation additions
    outside direct code modifications (and comments)?
  • Examples: Update readme file, add feature readme file, link to documentation
    on an a separate Web page, ...

How This Was Tested

The auto-generated headers were built on QEMU Q35 and confirmed the GOP configuration knob works as expected.

Integration Instructions

N/A for existing platforms. For platforms that require XIP usage, one should use ConfigGet***FromCache with user designated buffer, where the size of the buffer is specified in CACHED_POLICY_SIZE.

[codecov-commenter]

Codecov Report

Merging #244 (3b109a6) into main (8c0e50b) will decrease coverage by 0.18%.
The diff coverage is 0.00%.

❗ Current head 3b109a6 differs from pull request most recent head 5801958. Consider uploading reports for the commit 5801958 to get more accurate results

@@            Coverage Diff             @@
##             main     #244      +/-   ##
==========================================
- Coverage   27.74%   27.57%   -0.18%     
==========================================
  Files          16       16              
  Lines        4494     4522      +28     
==========================================
  Hits         1247     1247              
- Misses       3247     3275      +28     

Flag	Coverage Δ
Linux	27.57% <0.00%> (-0.18%)	⬇️

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Files Changed	Coverage Δ
SetupDataPkg/Tools/KnobService.py	0.00% <0.00%> (ø)