sh: arch/sh/kernel/smp.c needs linux/cpu.h for notify_cpu_starting().

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/smp.c

@@ -18,6 +18,7 @@
 #include <linux/spinlock.h>
 #include <linux/mm.h>
 #include <linux/module.h>
+#include <linux/cpu.h>
 #include <linux/interrupt.h>
 #include <asm/atomic.h>
 #include <asm/processor.h>