S666LN: init: Reconfigure scheduler tunables

* Based on init.mt6878.power.rc of [1].
[1]: https://github.com/mt6878-devs/android_device_xiaomi_malachite

Change-Id: I22d5a3b934c1cc4e8a62c845b3ecaa7e0a53def2
Signed-off-by: ChrisCatto <chriscatto@proton.me>
Signed-off-by: KimelaZX <mmikailrei@gmail.com>

rootdir/etc/init/hw/init.mt6789.power.rc

@@ -43,6 +43,13 @@ on init
     write /dev/cpuset/background/cpus 0-3
     write /dev/cpuset/system-background/cpus 0-3
     write /dev/cpuset/top-app/cpus 0-7
+    
+
+    # sched
+    write /proc/sys/kernel/sched_migration_cost_ns 250000
+    write /proc/sys/kernel/sched_latency_ns 4000000
+    write /proc/sys/kernel/sched_min_granularity_ns 500000
+    write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000
 
 on post-fs-data
     # ZRAM Setup