ARM: bcm: mark bcm_kona_smc_init as __init

The bcm_kona_smc_init function references the bcm_kona_smc_ids variable
that is marked __initconst, so the function itself has to be __init
to avoid this build error:

WARNING: arch/arm/mach-bcm/built-in.o(.text+0x12c): Section mismatch in reference from the function bcm_kona_smc_init() to the (unknown reference) .init.rodata:(unknown)

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Christian Daudt <csd@broadcom.com>

arch/arm/mach-bcm/bcm_kona_smc.c

@@ -41,7 +41,7 @@ static const struct of_device_id bcm_kona_smc_ids[] __initconst = {
 };
 
 /* Map in the bounce area */
-void bcm_kona_smc_init(void)
+void __init bcm_kona_smc_init(void)
 {
 	struct device_node *node;