ARM: bcm2835: Add missing static modifiers

Add two missing static modifiers.
Signed-off-by: Domenico Andreoli <domenico.andreoli@linux.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>

arch/arm/mach-bcm2835/bcm2835.c

@@ -30,12 +30,12 @@ static struct map_desc io_map __initdata = {
 	.type = MT_DEVICE
 };
 
-void __init bcm2835_map_io(void)
+static void __init bcm2835_map_io(void)
 {
 	iotable_init(&io_map, 1);
 }
 
-void __init bcm2835_init(void)
+static void __init bcm2835_init(void)
 {
 	int ret;