PM / devfreq: fix typo "CPU_EXYNOS4.12" twice

Dependencies on CPU_EXYNOS4212 and CPU_EXYNOS4412 for the "ARM
Exynos4210/4212/4412 Memory Bus DEVFREQ Driver" were added in commit
7b4050381127ae11fcfc74a106d715a5fbbf888a ("PM/Devfreq: Add Exynos4-bus
device DVFS driver for Exynos4210/4212/4412."). The tree (at that time,
v3.3, and currently) makes clear that this should have been dependencies
on SOC_EXYNOS4212 and SOC_EXYNOS4412.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index 1560d0d..31f3adb 100644
--- a/drivers/devfreq/Kconfig
+++ b/drivers/devfreq/Kconfig
@@ -67,7 +67,7 @@
 
 config ARM_EXYNOS4_BUS_DEVFREQ
 	bool "ARM Exynos4210/4212/4412 Memory Bus DEVFREQ Driver"
-	depends on CPU_EXYNOS4210 || CPU_EXYNOS4212 || CPU_EXYNOS4412
+	depends on CPU_EXYNOS4210 || SOC_EXYNOS4212 || SOC_EXYNOS4412
 	select ARCH_HAS_OPP
 	select DEVFREQ_GOV_SIMPLE_ONDEMAND
 	help