Fix a conformance issue in gBS->CreateEvent() & gBS->CreateEventEx():
1. gBS->CreateEventEx() with EventGroup = NULL should behavior like gBS->CreateEvent()
2. EVT_SIGNAL_EXIT_BOOT_SERVICES & EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE are invalid parameters for gBS->CreateEventEx() if the EventGroup is not NULL.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4692 6f19259b-4bc3-4df7-8a09-765794883524
1 file changed