UefiPayloadPkg: Allow DxeMain.inf to consume the new SerialPortLib

Let DxeMain.inf consume new SerialPortLib to support multiple
channel debug message on early DXE if the macro
MULTIPLE_DEBUG_PORT_SUPPORT is TRUE.

Reviewed-by: Guo Dong <guo.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Sean Rhodes <sean@starlabs.systems>
Reviewed-by: James Lu <james.lu@intel.com>
Reviewed-by: Gua Guo <gua.guo@intel.com>
Signed-off-by: Kavya <k.kavyax.sravanthi@intel.com>

Author: kavyak11

UefiPayloadPkg/UefiPayloadPkg.dsc

@@ -132,6 +132,8 @@
   # Note: for emulation platform such as QEMU, this may not work and should set it as FALSE
   DEFINE CPU_TIMER_LIB_ENABLE  = TRUE
 
+  DEFINE MULTIPLE_DEBUG_PORT_SUPPORT = FALSE
+
 [BuildOptions]
   *_*_*_CC_FLAGS                 = -D DISABLE_NEW_DEPRECATED_INTERFACES
 !if $(USE_CBMEM_FOR_CONSOLE) == FALSE
@@ -616,6 +618,10 @@
   #
   MdeModulePkg/Core/Dxe/DxeMain.inf {
     <LibraryClasses>
+      !if $(MULTIPLE_DEBUG_PORT_SUPPORT) == TRUE
+        DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
+        SerialPortLib|UefiPayloadPkg/Library/BaseSerialPortLibHob/BaseSerialPortLibHob.inf
+      !endif
       NULL|MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
   }