runahead+rewind conflicts

[barbudreadmon]

There are some issues when both rewind and runahead are active in FBNeo, this might be due to retroarch using only one savestate size for all savestates, while the savestate context api call allows for different savestate types.

This can be reproduced on FBNeo drivers when runahead optimizations are implemented (1 test game is ga2).

This issue is mostly a reminder for myself, since i'll probably be the one looking into this (i don't think many cores use that api call besides FBNeo).