ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock

This patch changes prefix of the clk register from S5P_ to
EXYNOS4_ for new EXYNOS SoCs such as EXYNOS5 and adds prefix
exynos4_ on clk declarations.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 1ac49de..8c1efe6 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -15,12 +15,21 @@
 void exynos_init_io(struct map_desc *mach_desc, int size);
 void exynos4_init_irq(void);
 
+#ifdef CONFIG_ARCH_EXYNOS4
 void exynos4_register_clocks(void);
 void exynos4_setup_clocks(void);
 
 void exynos4210_register_clocks(void);
 void exynos4212_register_clocks(void);
 
+#else
+#define exynos4_register_clocks()
+#define exynos4_setup_clocks()
+
+#define exynos4210_register_clocks()
+#define exynos4212_register_clocks()
+#endif
+
 void exynos4_restart(char mode, const char *cmd);
 
 extern struct sys_timer exynos4_timer;