sh: generic clockevent broadcast support.

This hooks up GENERIC_CLOCKEVENTS_BROADCAST and a dummy local timer,
which we call in to from the timer IPI when no other local timer is
provided.

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

arch/sh/include/asm/smp.h

@@ -33,6 +33,9 @@ enum {
 void smp_message_recv(unsigned int msg);
 void smp_timer_broadcast(cpumask_t mask);
 
+void local_timer_interrupt(void);
+void local_timer_setup(unsigned int cpu);
+
 void plat_smp_setup(void);
 void plat_prepare_cpus(unsigned int max_cpus);
 int plat_smp_processor_id(void);