OvmfPkg/PlatformDebugLibIoPort: Introduce a Nocheck variant

Introduce PlatformRomDebugLibIoPortNocheck which doesn't try to detect
the debug IO port. Instead, debug logs are always written to the IO port.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20200423095358.2518197-5-anthony.perard@citrix.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

OvmfPkg/Library/PlatformDebugLibIoPort/DebugIoPortNocheck.c

@@ -0,0 +1,25 @@
+/** @file
+  Dectection code for hypervisor debug port.
+
+  Copyright (c) 2020, Citrix Systems, Inc.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "DebugLibDetect.h"
+
+/**
+  Always return TRUE without detection as the debug I/O port is always
+  present.
+
+  @retval TRUE   The debug I/O port is always present.
+
+**/
+BOOLEAN
+EFIAPI
+PlatformDebugLibIoPortDetect (
+  VOID
+  )
+{
+  return TRUE;
+}