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/core.h b/arch/arm/mach-cns3xxx/core.h
index fcd2253..4894b8c 100644
--- a/arch/arm/mach-cns3xxx/core.h
+++ b/arch/arm/mach-cns3xxx/core.h
@@ -22,5 +22,6 @@
 void __init cns3xxx_map_io(void);
 void __init cns3xxx_init_irq(void);
 void cns3xxx_power_off(void);
+void cns3xxx_restart(char, const char *);
 
 #endif /* __CNS3XXX_CORE_H */