Nightmare Xtreme v1.0

Changelogs:

• Merge linux tag v4.4.262

• Merge CAF tag 'LA.UM.9.2.r1-02700-SDMxx0.0' of

• Update compiler to latest Proton clang 13 build date 20200320

• Use tick rate of 300Hz

• Anxiety as default i/o scheduler

• Recalculated EAS energy model using freqbench result by @kdrag0n (using sdm660 freq)

• Improved RAM management

• ashmem: Rewrite to improve clarity and performance

• sched: use sysctl to control energy aware feature

• more improvements and misc changes