ARM: rockchip: use const and __initconst for rk3036 smp_operations

The newly added rk3036 smp operations missed the wholesale fixup from
Masahiro Yamada. So fix that now.
Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/mach-rockchip/platsmp.c

@@ -351,7 +351,7 @@ static void rockchip_cpu_die(unsigned int cpu)
 }
 #endif
 
-static struct smp_operations rk3036_smp_ops __initdata = {
+static const struct smp_operations rk3036_smp_ops __initconst = {
 	.smp_prepare_cpus	= rk3036_smp_prepare_cpus,
 	.smp_boot_secondary	= rockchip_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU