Mouse wheel input is ignored on some mice

[ssokolow]

With ps2x2pico.uf2 or ps2x2pico-200hz.uf2 from the Version 1.0 release:

• The mouse wheel registers just fine on the Gateway pack-in mouse (Model: MOAKUO) that I was testing with in case I screwed up my assembly and fried something.
• The mouse wheel on the Acer pack-in mouse (Model: MOLDUO) that I actually use (better sensor that doesn't just give up on the white hardtop mouse pad I'm used to) has no effect
• Both mouse wheels work just fine when plugged into a PC with USB support