FatPkg: Change use of EFI_D_* to DEBUG_*

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3739

Update all use of EFI_D_* defines in DEBUG() macros to DEBUG_* defines.

Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>

FatPkg/EnhancedFatDxe/Misc.c

@@ -377,7 +377,7 @@ FatDiskIo (
 
   if (EFI_ERROR (Status)) {
     Volume->DiskError = TRUE;
-    DEBUG ((EFI_D_ERROR, "FatDiskIo: error %r\n", Status));
+    DEBUG ((DEBUG_ERROR, "FatDiskIo: error %r\n", Status));
   }
 
   return Status;