OvmfPkg: replace old EFI_D_ debug levels with new DEBUG_ ones

Generated mechanically with:
find OvmfPkg -type f -exec sed -i -e 's/EFI_D_/DEBUG_/g' {} \;

Signed-off-by: Rebecca Cran <rebecca@bsdio.com>
Cc: Philippe Mathieu-Daude <philmd@redhat.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200429215327.606467-1-rebecca@bsdio.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

OvmfPkg/Library/SerializeVariablesLib/SerializeVariablesLib.c

@@ -211,7 +211,7 @@ IterateVariablesInBuffer (
   //
   if (TotalSizeUsed != MaxSize) {
     DEBUG ((
-      EFI_D_ERROR,
+      DEBUG_ERROR,
       "Deserialize variables error: TotalSizeUsed(%Lu) != MaxSize(%Lu)\n",
       (UINT64)TotalSizeUsed,
       (UINT64)MaxSize