CorebootPayloadPkg: Conditionally add DebugAgentLib for DXE drivers
To fix building with SOURCE_DEBUG_ENABLE, add DebugAgentLib for
LibraryClasses.common.DXE_DRIVER, as is done with Vlv2TbltDevicePkg.
Cc: Maurice Ma <maurice.ma@intel.com> Cc: Prince Agyeman <prince.agyeman@intel.com> Cc: Benjamin You <benjamin.you@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Alex James <theracermaster@gmail.com> Reviewed-by: Benjamin You <benjamin.you@intel.com>