1. Fixed issue that firmware cannot boot if no USB debug cable connection.

2. Fixed issue that Ovmf with debug agent cannot boot if HOST software was not connected.

Signed-off-by: vanjeff
Reviewed-by: geekboy15a
Reviewed-by: erictian




git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12486 6f19259b-4bc3-4df7-8a09-765794883524

SourceLevelDebugPkg/Library/DebugCommunicationLibSerialPort/DebugCommunicationLibSerialPort.inf

@@ -1,7 +1,7 @@
 ## @file
 #  Debug Communication Library instance based on serila port.
 #
-#  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
 #
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
@@ -35,4 +35,5 @@
 [LibraryClasses]
   SerialPortLib
   TimerLib
+  DebugLib