MdeModulePkg/BMMUI: add comments for function parameter

Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>

MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenance.c

@@ -571,6 +571,7 @@ UpdateTerminalContent (
 /**
   Update the console content in ConsoleMenu.
 
+  @param ConsoleName       The name for the console device type.
   @param BmmData           The BMM fake NV data.
 
 **/