ARM: EXYNOS: Correct header comment in Kconfig file

This patch corrects header comment of Kconfig file by changing EXYNOS4 to
EXYNOS.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 652a0bb..3003ab3 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -5,7 +5,7 @@
 #
 # Licensed under GPLv2
 
-# Configuration options for the EXYNOS4
+# Configuration options for the EXYNOS
 
 menuconfig ARCH_EXYNOS
 	bool "Samsung EXYNOS"