Backport CASS for Mint

[TenSeventy7]

Completely scrap EMSnxt for how messy it is and replace it with something simpler. Let's try keeping AIGo though.

Additional context
kerneltoast/android_kernel_google_gs201@31a9b04

https://github.com/kerneltoast/android_kernel_google_gs201/commits/14.0.0-sultan/kernel/sched/cass.c