[ARM] Separate VIC (vectored interrupt controller) support from Versatile

Other machines may wish to make use of the VIC support code, so
move it to arch/arm/common.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 50b9afa..c4d585e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -180,6 +180,7 @@
 config ARCH_VERSATILE
 	bool "Versatile"
 	select ARM_AMBA
+	select ARM_VIC
 	select ICST307
 	help
 	  This enables support for ARM Ltd Versatile board.