[FREELDR] LaunchSecondStageLoader(): Always return ESUCCESS if rosload.exe started correctly...

instead of returning an erroneous value, since the rosload.exe entry point
`RunLoader()` doesn't return any value. This allows exiting from rosload.exe
and NOT having the `LaunchSecondStageLoader()` returning 0, for example,
which would then be interpreted as an error condition and showing the
"Unable to load second stage loader." error box.

boot/freeldr/freeldr/freeldr.c

@@ -85,7 +85,8 @@ LaunchSecondStageLoader(VOID)
     /* Call the entrypoint */
     printf("Launching rosload.exe...\n");
     EntryPoint = VaToPa(RosloadDTE->EntryPoint);
-    return (*EntryPoint)();
+    (*EntryPoint)();
+    return ESUCCESS;
 }
 
 VOID __cdecl BootMain(IN PCCH CmdLine)