schedule: make 2 initialisation functions __cold

scheduler_register() and scheduler_init() are never called on hot
paths, make them cold.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

Author: lyakh

src/schedule/schedule.c

@@ -81,11 +81,13 @@ int schedule_task_init(struct task *task,
 	return 0;
 }
 
-static void scheduler_register(struct schedule_data *scheduler)
+__cold static void scheduler_register(struct schedule_data *scheduler)
 {
 	struct schedulers **sch = arch_schedulers_get();
 	struct k_heap *heap = NULL;
 
+	assert_can_be_cold();
+
 	if (IS_ENABLED(CONFIG_SOF_USERSPACE_LL) && scheduler_is_user(scheduler->type)) {
 		sch = arch_user_schedulers_get();
 		heap = sof_sys_user_heap_get();
@@ -105,11 +107,13 @@ static void scheduler_register(struct schedule_data *scheduler)
 	list_item_append(&scheduler->list, &(*sch)->list);
 }
 
-void scheduler_init(int type, const struct scheduler_ops *ops, void *data)
+__cold void scheduler_init(int type, const struct scheduler_ops *ops, void *data)
 {
 	struct schedule_data *sch;
 	struct k_heap *heap = NULL;
 
+	assert_can_be_cold();
+
 	if (IS_ENABLED(CONFIG_SOF_USERSPACE_LL) && scheduler_is_user(type))
 		heap = sof_sys_user_heap_get();