SI: Ignore non-standard setGameID command

[vpelletier]

Avoids a panic when loading recent swiss. Not enough to have it run, unfortunately.

[AdmiralCurtiss]

Do you know what happens on hardware for this command?

[Pokechu22]

This functionality was added by @Extrems in emukidid/swiss-gc@b6aec69. As far as I can tell, this is a custom command used for an N64 hardware mod (and not one that's for modded controllers, either). I'm not how regular hardware reacts to unknown commands, if it does anything. (I'm also not sure if this mod even makes sense on the GameCube/Wii, but to my understanding SI is the same between the N64 and GameCube so the same protocol applies.)

[Extrems]

Licensed accessories simply don't respond, and this is actually for BlueRetro.

[AdmiralCurtiss]

This info should probably be mentioned in the comments for this command then.

[vpelletier]

Thanks for the review.

This info should probably be mentioned in the comments for this command then.

I have extended the comment to include this piece of information.