ARM: 7250/1: restart: S5P64X0: use new restart hook

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

Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-s5p64x0/common.h b/arch/arm/mach-s5p64x0/common.h
index 8a1eca5..f8a60fd 100644
--- a/arch/arm/mach-s5p64x0/common.h
+++ b/arch/arm/mach-s5p64x0/common.h
@@ -22,6 +22,8 @@
 void s5p6450_register_clocks(void);
 void s5p6450_setup_clocks(void);
 
+void s5p64x0_restart(char mode, const char *cmd);
+
 #ifdef CONFIG_CPU_S5P6440
 
 extern  int s5p64x0_init(void);