ARM: make of_device_ids const

of_device_ids (i.e. compatible strings and the respective data) are not
supposed to change at runtime. All functions working with of_device_ids
provided by <linux/of.h> work with const of_device_ids. So mark the
non-const structs in arch/arm as const, too.

While at it also add some __initconst annotations.

Acked-by: Jason Cooper <jason@lakedameon.net>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c
index d8ab605..8b9f5e2 100644
--- a/arch/arm/mach-mvebu/pmsu.c
+++ b/arch/arm/mach-mvebu/pmsu.c
@@ -104,7 +104,7 @@
 
 static void *mvebu_cpu_resume;
 
-static struct of_device_id of_pmsu_table[] = {
+static const struct of_device_id of_pmsu_table[] = {
 	{ .compatible = "marvell,armada-370-pmsu", },
 	{ .compatible = "marvell,armada-370-xp-pmsu", },
 	{ .compatible = "marvell,armada-380-pmsu", },