ARM: S3C24XX: move s3c24xx_init_irq to s3c2410_init_irq

The s3c24xx_init_irq function that was the base for all irq inits
is now only used to initialize the real s3c2410 irqs.

Therefore rename it and also move its declaration from plat/cpu.h
to common.h

The eint declaration is used by the vast majority of the SoCs and
gets therefore placed outside any ifdefs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-s3c24xx/mach-n30.c b/arch/arm/mach-s3c24xx/mach-n30.c
index 73a690f..2cb46c3 100644
--- a/arch/arm/mach-s3c24xx/mach-n30.c
+++ b/arch/arm/mach-s3c24xx/mach-n30.c
@@ -592,7 +592,7 @@
 	.atag_offset	= 0x100,
 	.init_time	= samsung_timer_init,
 	.init_machine	= n30_init,
-	.init_irq	= s3c24xx_init_irq,
+	.init_irq	= s3c2410_init_irq,
 	.map_io		= n30_map_io,
 	.restart	= s3c2410_restart,
 MACHINE_END
@@ -603,7 +603,7 @@
 	.atag_offset	= 0x100,
 	.init_time	= samsung_timer_init,
 	.init_machine	= n30_init,
-	.init_irq	= s3c24xx_init_irq,
+	.init_irq	= s3c2410_init_irq,
 	.map_io		= n30_map_io,
 	.restart	= s3c2410_restart,
 MACHINE_END