Phoenix Kernel EAS R1.8

Changelog:

• Upstreamed to latest linux stable 4.4.264

• Compiled kernel using latest proton clang 13.0

• Default to NOATIME and NODIRATIME for FS performance improvement

• arm64: add ARM64-specific support for flatmem

• defconfig: set a tick rate 300hz for better smooth

• sound: sdm660_cdc: correct the limits

• and more misc changes.

Credits:

• Thanks a lot to @Irfannim for helping

• Thanks a lot to all member #FunProject

• Thanks a lot to all developers for commit

• Thanks a lot to tester