kernel: KSchedulerPriorityQueue: Lowest priority should be LowestThreadPriority.

src/core/hle/kernel/global_scheduler_context.h

@@ -21,7 +21,7 @@ class KernelCore;
 class SchedulerLock;
 
 using KSchedulerPriorityQueue =
-    KPriorityQueue<KThread, Core::Hardware::NUM_CPU_CORES, Svc::LowestThreadPriority + 1,
+    KPriorityQueue<KThread, Core::Hardware::NUM_CPU_CORES, Svc::LowestThreadPriority,
                    Svc::HighestThreadPriority>;
 
 static constexpr s32 HighestCoreMigrationAllowedPriority = 2;