ARM: restart: cns3xxx: use new restart hook

Hook these platforms restart code into the new restart hook rather
than using arch_reset().

Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c
index 55f7b4b..9b8c3d5 100644
--- a/arch/arm/mach-cns3xxx/cns3420vb.c
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
@@ -202,4 +202,5 @@
 	.init_irq	= cns3xxx_init_irq,
 	.timer		= &cns3xxx_timer,
 	.init_machine	= cns3420_init,
+	.restart	= cns3xxx_restart,
 MACHINE_END