Use newer PCSX-ReARMed
Right now we have it pinned to an old commit because newer versions added lightrec, which requires firmware, and crashes without it.
https://github.com/libretro/pcsx_rearmed/pull/407 makes it automatically disable lightrec when no firmware is found. This solves the immediate issue, but lightrec also breaks savestate compatibility.
So we have multiple possible directions:
- Bite the bullet and accept that adding/removing bios breaks old savestates (but not saves!)
- Disable dynarec in the option file
- Disable dynarec at build time, need https://github.com/libretro/pcsx_rearmed/issues/408 to be fixed first