The options changed are similar to the configuration used for the standalone VICE:
* Set the SID implementation to FastSID for `arm` devices
* Decrease the sound sample rate to 22050 for RPI0/1
Added x64dtv, x64sc, x128, xpet, xplus4 and xvic on top of the default x64.
This does increase build time, but it shouldn't be a big issue for slower RPIs
as prebuilt binaries will be available.
* Amiga - new extensions supported by `lr-puae`
* C64 - new extensions supported by `lr-vice`
* 3DO - added `.chd`, supported by the Opera Libretro core; updated license URL for the core.
* GC/Wii - added `.rvz`, supported by Dolphin
* MSX - added `.cas`, supported by both `lr-bluesmsx` and `openmsx`
* PC88 - added `.m3u`, supported by `lr-quasi88`
