ARM: SAMSUNG: Remove static of S5P SoCs sysclass

This patch removes static of s5p6440_sysclass, s5p6442_sysclass,
and s5pv210_sysclass for defintion as extern.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c
index 0e0f8fd..2b776eb 100644
--- a/arch/arm/mach-s5pv210/cpu.c
+++ b/arch/arm/mach-s5pv210/cpu.c
@@ -100,7 +100,7 @@
 	s5p_init_irq(vic, ARRAY_SIZE(vic));
 }
 
-static struct sysdev_class s5pv210_sysclass = {
+struct sysdev_class s5pv210_sysclass = {
 	.name	= "s5pv210-core",
 };