Eat cycles in devctl 0x02425823, fix params

I can't seem to reproduce a way to change its return value, though... what we have and what JPCSP says changes it doesn't work...

Significant performance improvement for Star Ocean's intro/menu.  Went from ~250 max vps to ~1500 while playing the video.  It was spending 20% of its time in `sceIoDevctl()` alone... now that's down to 0.89%.

I did confirm it calls the thing a ton on a real PSP also.  Tried to approximate real timing, although it seems to vary.

-[Unknown]