Lineage OS18.1

Changelog:
 * fixed random color flashes when switching to AOD mode or when pressing FOD when screen is OFF
 * improved FOD speed and accuracy
 * improved screen on speed
 * other misc kernel improvements


Flashing 1st time steps : 

1. Flash the Lineage recovery using "fastboot flash boot_ab boot.img".
2. Hold power button and volume up button to reboot into Lineage recovery.
3. In recovery go "Factory reset" then "Format data/factory reset" using volume butttons.
4. In recovery go to "Apply update" then "Apply from ADB" using volume butttons.
5. Flash the rom using ADB: "adb sideload path/to/rom.zip".
6. Reboot and have fun!