ARM: cns3xxx: Should select CPU_V6K

CNS3XXX is based on MPCore, so select the right CPU option for it.
Signed-off-by: NImre Kaloz <kaloz@openwrt.org>
Signed-off-by: NAnton Vorontsov <avorontsov@mvista.com>

arch/arm/Kconfig

@@ -321,7 +321,7 @@ config ARCH_CLPS711X
 
 config ARCH_CNS3XXX
 	bool "Cavium Networks CNS3XXX family"
-	select CPU_V6
+	select CPU_V6K
 	select GENERIC_CLOCKEVENTS
 	select ARM_GIC
 	select MIGHT_HAVE_PCI