sched/headers: Move _init() prototypes from <linux/sched.h> to <linux/sched/init.h>

trap_init() and cpu_init() belong into <linux/cpu.h>, sched_init*() into <linux/sched/init.h>.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

include/linux/sched/init.h

@@ -3,4 +3,11 @@
 
 #include <linux/sched.h>
 
+/*
+ * Scheduler init related prototypes:
+ */
+
+extern void sched_init(void);
+extern void sched_init_smp(void);
+
 #endif /* _LINUX_SCHED_INIT_H */