[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/common/Kconfig b/arch/arm/common/Kconfig
index d7509c7..5e34ca6 100644
--- a/arch/arm/common/Kconfig
+++ b/arch/arm/common/Kconfig
@@ -1,7 +1,10 @@
-config ICST525
+config ARM_GIC
 	bool
 
-config ARM_GIC
+config ARM_VIC
+	bool
+
+config ICST525
 	bool
 
 config ICST307