Delta Kernel 4.2

Changelog:
Upstream
Switch to WALT
Misc other improvements

Delta Kernel 4.1

Fixed max freq lockups
Skip inefficient freqs on little cluster
Raise big cluster minimum freq when screen on
Update energy model
Update fts drivers from micode
Upstream to 4.9.266
Fixed sched boost and mmc clock read logspams
Misc. other improvements

Delta Kernel 4.0

https://katb.in/tail823

Delta Kernel 3.0

https://telegra.ph/Delta-Kernel-v30-02-04

Previous releases at https://delta.manuelpinto.in