SpamBinBuild: Patch aux file hash into Stm.bin

[Javagedes]

Description

Adds the framework to consume and patch a pcd that represents the 32 byte hash of the auxiliary file. This includes a new patchable pcd, PcdAuxBinHash, and the post-build logic to patch the hash into the stm binary.

NOTE: The platform build will fail in the newly added step as the pcd gets optimized out of the binary due to not being used.

You can force it to be used by adding the following code to StmInit.c

L26:

volatile UINT8                  *mMyValue;

L805:

  mMyValue = PatchPcdGet8(PcdAuxBinHash);
  if (mMyValue != 0) {
    DEBUG((EFI_D_INFO, "PcdAuxBinHash - %x\n", (UINTN)mMyValue));
  }

• [ ] 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

N/A

Integration Instructions

N/A