ARM: bcm: include local platsmp.h for bcm2836_smp_ops

Include platsmp.h for the definition of bcm2836_smp_ops to fix
the following warning:

arch/arm/mach-bcm/platsmp.c:334:29: warning: symbol 'bcm2836_smp_ops' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm/mach-bcm/platsmp.c

@@ -22,6 +22,8 @@
 #include <asm/smp_plat.h>
 #include <asm/smp_scu.h>
 
+#include "platsmp.h"
+
 /* Size of mapped Cortex A9 SCU address space */
 #define CORTEX_A9_SCU_SIZE	0x58