ARM: EXYNOS: change HAVE_SAMSUNG_KEYPAD to KEYBOARD_SAMSUNG

Commit 6b5ab4f4 ("ARM: EXYNOS: Add Exynos4 device tree enabled
board file") added select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD

to the MACH_EXYNOS4_DT Kconfig entry. But there's no Kconfig symbol
HAVE_SAMSUNG_KEYPAD. Since this select statement depends on
INPUT_KEYBOARD this entry should select KEYBOARD_SAMSUNG instead.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/Kconfig

@@ -406,7 +406,7 @@ config MACH_EXYNOS4_DT
 	depends on ARCH_EXYNOS4
 	select ARM_AMBA
 	select CPU_EXYNOS4210
-	select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD
+	select KEYBOARD_SAMSUNG if INPUT_KEYBOARD
 	select PINCTRL
 	select PINCTRL_EXYNOS
 	select USE_OF