* kernel: Fix sleep timing accuracy
This commit corrects some mistake while comparing reversing of kernel
13.x with our own.
WaitAndCheckScheduledObjects timing accuracy was also improved.
* Make KTimeManager.WaitAndCheckScheduledObjects spin wait for sub milliseconds
Fix performance regression on Pokemon Let's Go games and possibly
others.
* Address rip's comment
* kernel: Fix issues with timeout of -1 (0xFFFFFFFF)
Fixes possible hang on Pokemon DP and possibly others
* Rewrite scheduler context switch code
* Fix race in UnmapIpcRestorePermission
* Fix thread exit issue that could leave the scheduler in a invalid state
* Change context switch method to not wait on guest thread, remove spin wait, use SignalAndWait to pass control
* Remove multi-core setting (it is always on now)
* Re-enable assert
* Remove multicore from default config and schema
* Fix race in KTimeManager
