ARM: S3C24XX: modify s3c2412 irq init to initialize all irqs

Combines the two independent init steps for the irqs into one.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h
index 362a8cd..abefeb3 100644
--- a/arch/arm/mach-s3c24xx/common.h
+++ b/arch/arm/mach-s3c24xx/common.h
@@ -36,6 +36,7 @@
 extern void s3c2412_init_clocks(int xtal);
 extern  int s3c2412_baseclk_add(void);
 extern void s3c2412_restart(char mode, const char *cmd);
+extern void s3c2412_init_irq(void);
 #else
 #define s3c2412_init_clocks NULL
 #define s3c2412_init_uarts NULL