ARM: ICST: provide definitions for max/min VCO frequencies

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-integrator/cpu.c b/arch/arm/mach-integrator/cpu.c
index c4e5deb..1671b4a 100644
--- a/arch/arm/mach-integrator/cpu.c
+++ b/arch/arm/mach-integrator/cpu.c
@@ -33,7 +33,7 @@
 
 static const struct icst_params lclk_params = {
 	.ref		= 24000,
-	.vco_max	= 320000,
+	.vco_max	= ICST525_VCO_MAX_5V,
 	.vd_min		= 8,
 	.vd_max		= 132,
 	.rd_min		= 24,
@@ -42,7 +42,7 @@
 
 static const struct icst_params cclk_params = {
 	.ref		= 24000,
-	.vco_max	= 320000,
+	.vco_max	= ICST525_VCO_MAX_5V,
 	.vd_min		= 12,
 	.vd_max		= 160,
 	.rd_min		= 24,