kernel: use list.h for scheduling run queues

kernel-src/include/kernel/scheduler.h

@@ -20,15 +20,12 @@
 #define SCHED_SLEEP_TIME_LIMIT_CPU_US 1000
 
 typedef struct {
-	 struct {
-		 thread_t *ins;
-		 thread_t *run;
-	 } queues[SCHED_RUN_QUEUE_SIZE];
+	list_t queues[SCHED_RUN_QUEUE_SIZE];
 	bitmap_t thread_bitmap;
 } sched_run_queue_t;
 
 typedef struct {
-	thread_t *queues[SCHED_RUN_QUEUE_SIZE];
+	list_t queues[SCHED_RUN_QUEUE_SIZE];
 	int ins;
 	int run;
 	size_t thread_count;

kernel-src/include/kernel/thread.h

@@ -7,6 +7,7 @@
 #include <kernel/signal.h>
 #include <kernel/event.h>
 #include <kernel/kcov.h>
+#include <list.h>
 
 #define THREAD_FLAGS_QUEUED 1
 #define THREAD_FLAGS_RUNNING 2
@@ -23,8 +24,7 @@ struct proc_t;
 
 typedef struct thread_t {
 	void *kernelstacktop;
-	struct thread_t *next;
-	struct thread_t *prev;
+	list_node_t queue_node;
 	struct thread_t *sleepnext;
 	struct thread_t *sleepprev;
 	struct thread_t *procnext;