Fix Timer0 and VCount

[DittoLink]

I need a option to restrict sdcard's loading speed to make Timer0 and VCount become more stable because I want to RNG in pokemon bw and bw2.

[RocketRobz]

Are you sure? Because I'm pretty sure we're actually clearing Timer0.

[DittoLink]

Are you sure? Because I'm pretty sure we're actually clearing Timer0.

Yes.
I've done lots of gen 5 RNG test on my o3ds through Twilight Menu++ and flashcart(GW Bluecard、DSTWO、AK2i),and then I figure out that the sdcard's speed can affect Timer0 and VCount.

Same sdcard almost get same Timer0 and VCount,high speed sdcad get bigger Timer0 and VCount.

If I put some large files to sdcard,the Timer0 and VCount become a bit stable.