MdeModulePkg BootMaintenanceManagerUiLib: Move refresh boot option later

Constructor is too early that ConnectAll() may not do. Move refresh boot
option in form open.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Xu WeiX <weix.xu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>

MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenance.c

@@ -1111,6 +1111,7 @@ BootMaintCallback (
         // 2. Re-scan the BootOption menus (including the legacy boot option).
         //
         CustomizeMenus ();
+        EfiBootManagerRefreshAllBootOption ();
         BOpt_GetBootOptions (Private);
         mFirstEnterBMMForm = TRUE;
       }
@@ -1690,8 +1691,6 @@ BootMaintenanceManagerUiLibConstructor (
   Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **) &mBmmCallbackInfo->FormBrowser2);
   ASSERT_EFI_ERROR (Status);
 
-  EfiBootManagerRefreshAllBootOption ();
-
   //
   // Create LoadOption in BmmCallbackInfo for Driver Callback
   //