MdePkg: Add UefiDebugLibDebugPortProtocol to output logs via DebugPort.

UefiDebugLibDebugPortProtocol is an implementation of DebugLib.
It calls EFI_DEBUGPORT_PROTOCOL.Write in DebugPrint and DebugAssert.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Masamitsu MURASE <masamitsu.murase@gmail.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18414 6f19259b-4bc3-4df7-8a09-765794883524
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc
index 89fc630..00c46d4 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -114,6 +114,7 @@
   MdePkg/Library/UefiApplicationEntryPoint/UefiApplicationEntryPoint.inf

   MdePkg/Library/UefiBootServicesTableLib/UefiBootServicesTableLib.inf

   MdePkg/Library/UefiDebugLibConOut/UefiDebugLibConOut.inf

+  MdePkg/Library/UefiDebugLibDebugPortProtocol/UefiDebugLibDebugPortProtocol.inf

   MdePkg/Library/UefiDebugLibStdErr/UefiDebugLibStdErr.inf

   MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.inf

   MdePkg/Library/UefiDevicePathLib/UefiDevicePathLibOptionalDevicePathProtocol.inf