Fix Sceumd

Fix Narisokonai Eiyuutan: Taiyou to Tsuki no Monogatari black screen
Fix The History Channel: Great Battles of Rome load probrem.
Fix Sora no Kiseki SC change disc issue
Merge pull request #4892 from sum2012/sceumd

Fix Sceumd
Merge remote-tracking branch 'upstream/master' into fps2