Trying to fix sceAtracGetBufferInfoForResetting 

I analysed the input values of sceAtracGetBufferInfoForResetting to choose the output.
It works with both Trails in the Sky (https://github.com/hrydgard/ppsspp/issues/4003) and Ys Seven (https://github.com/hrydgard/ppsspp/issues/2391). I do not have enough games to test. Henrik asked to open a pull request to discuss about it.

@unknownbrackets, does this change make sense?

@solarmystic, could you test the GTA games?