r4, Natsuki

• Update ion/iommu rewrites
• Kill userspace CPU boosting entirely
• Update more PELT backports
• CFQ backports
• Default to 128KB io readahead
• scsi/UFS backports
• Fix the screen flicker bug in Chrome (on Synaptics panels)
• Fix some sensors consuming power
• Re-introduce Simple Low Memory Killer and Simple Thermal
• Rework my energy model
• Revert a bunch of troublesome commits
• Get rid of pocket judge
• Introduce CPUset assist and SchedTune assist
• Do not select cpuidle
• Use optimized memcmp, strcmp, strlen, strchr, strrchr
• Refactor bootargs
• Upstream Linux and CAF as usual