Revert "Revert "OOM: dont kill kernel threads""

This reverts commit d7855301746f1d0e40140c5ff7f0b2133d27f498.
Revert "Revert "SCHEDULER: Autogroup patch group by current user android UID""

This reverts commit 50cc4e746e08c9fc7917b883a528b42c5e39a999.
Revert "Revert "VM: lower latency values to help reduce lag""

This reverts commit c573d76b43c8bc4d4bd77d4ba46763b590238b11.