[MIPS] Export smp_call_function and smp_call_function_single.

Signed-off-by: NChris Dearman <chris@mips.com>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/kernel/smp.c

@@ -216,6 +216,7 @@ int smp_call_function(void (*func) (void *info), void *info, int retry,
 {
 	return smp_call_function_mask(cpu_online_map, func, info, retry, wait);
 }
+EXPORT_SYMBOL(smp_call_function);
 
 void smp_call_function_interrupt(void)
 {
@@ -271,6 +272,7 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
 	put_cpu();
 	return 0;
 }
+EXPORT_SYMBOL(smp_call_function_single);
 
 static void stop_this_cpu(void *dummy)
 {