Proton v3.1

changelog:
Added SUSFS
Fixed 4k 60
Updated KSU Next
increased UV for GPU
Various changes and adjustments aimed at improving performance, increasing battery life, and reducing heat:

arm64: configs: enable IRQ SBALANCE
cpufreq: schedutil: Use the frequency below the target if they're close
cpufreq: schedutil: Set default up/down rate limits to 500/1000 us
ANDROID: cpufreq/schedutil: add up/down frequency transition rate limits
kernel: Introduce SBalance IRQ balancer
mmc: disable SPI CRC
arm64: configs: Disable PPR
arm64: configs: Don't sync when entering suspend
arm64: configs: Set CONFIG_HZ to 100
arm64: configs: Disable ThinLTO for performance impact
arm64: configs: Increase contiguous area size to 20MB
PM / freezer: Reduce freeze timeout to 1 second for Android
gpu: arm/exynos: Add sustainable frequency
fs: add KSU umount patches
BACKPORT: FROMGIT: kbuild: Remove support for Clang's ThinLTO caching