v3.3/.5/

- phoenix: props: Don't write binary XML files
- phoenix: overlay: do not specify quick_qs_offset_height
- phoenix: rootdir: Configure dynamic schedtune boost
- phoenix: rootdir: Set schedtune.boost to 1
- phoenix: rootdir: Set swappiness to 100
- phoenix: Enable idle_state mechanism
- phoenix: rootdir: Modify the cpuset setting
- phoenix: rootdir: Add SchedTune configuration
- phoenix: use sunfish cpusets
- phoenix: rootdir: set zram size to 50% of total ram
- phoenix: Configure zram from separate fstab
- phoenix: adjust zram write back policy