Fix GCC Build of AdvLoggerOsConnectorPRM

[os-d]

Description

The GCC build options in the INF referenced a function in the sample PRM driver (and was apparently not caught by CI). Building on GCC breaks without this function defined. Instead require that the PRM handler is defined (so that GCC does not strip it out when building the binary, seeing it not being referenced).

For each item, place an "x" in between [ and ] if true. Example: [x].
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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

Building on GCC.

Integration Instructions

N/A.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 10.86%. Comparing base (33b0a05) to head (9324244).

Additional details and impacted files

@@               Coverage Diff               @@
##           release/202311     #494   +/-   ##
===============================================
  Coverage           10.86%   10.86%           
===============================================
  Files                 142      142           
  Lines               22379    22379           
  Branches             1808     1808           
===============================================
  Hits                 2431     2431           
  Misses              19916    19916           
  Partials               32       32           

Flag	Coverage Δ
AdvLoggerPkg	3.71% <ø> (ø)

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