ARM: S3C64XX: Staticise s3c6400_sysclass

The symbol is not exported and doesn't need to be.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-s3c64xx/s3c6400.c b/arch/arm/mach-s3c64xx/s3c6400.c
index 7a3bc32..51c00f2 100644
--- a/arch/arm/mach-s3c64xx/s3c6400.c
+++ b/arch/arm/mach-s3c64xx/s3c6400.c
@@ -70,7 +70,7 @@
 	s3c64xx_init_irq(~0 & ~(0xf << 5), ~0);
 }
 
-struct sysdev_class s3c6400_sysclass = {
+static struct sysdev_class s3c6400_sysclass = {
 	.name	= "s3c6400-core",
 };