ARM: SAMSUNG: Fix mask for S3C64xx CPU IDs

The difference in CPU ID between S3C6400 and S3C6410 is a single bit and
that bit wasn't included in the mask causing the S3C6410 to be misdetected
as a S3C6400.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
[kgene.kim@samsung.com: changed the value]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/plat-samsung/include/plat/cpu.h

@@ -26,7 +26,7 @@ extern unsigned long samsung_cpu_id;
 #define S3C6400_CPU_ID		0x36400000
 #define S3C6410_CPU_ID		0x36410000
 #define S3C64XX_CPU_ID		(S3C6400_CPU_ID & S3C6410_CPU_ID)
-#define S3C64XX_CPU_MASK	0x1FF40000
+#define S3C64XX_CPU_MASK	0xFFFFF000
 
 #define S5P6440_CPU_ID		0x56440000
 #define S5P6450_CPU_ID		0x36450000