a bit wrong japanese translation about pcsx2

[gregory38]

Hello. The japanese translation is outdated. However don't report all error. Update directly the po and send it back.
You can either fork the project and do a pull a request with your update. Or post on the pcsx2 forum. Or attach the file here :)

OK, I know. Thank you.
I'm going to "pull request" of new better translation. So stay tuned :)