FEAT-30761 - Adding defaults to all Switch cases in PalDevice gfx detection.
FEAT-30761 - Adding defaults to all Switch cases in PalDevice gfx detection.

Change-Id: Ic998dba44d3287484d6b0da4f07f320de8e6d92b

ROCm-Developer-Tools/ROCclr,ROCm-Developer-Tools/ROCclr