vexpress: use correct timer address on extended memory map systems

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: albert.u.boot@aribaud.net
diff --git a/include/configs/vexpress_common.h b/include/configs/vexpress_common.h
index 6da5e8f..7e78f8a 100644
--- a/include/configs/vexpress_common.h
+++ b/include/configs/vexpress_common.h
@@ -132,7 +132,7 @@
 #define VEXPRESS_FLASHPROG_FLVPPEN	(1 << 0)
 
 #define CONFIG_SYS_TIMER_RATE		1000000
-#define CONFIG_SYS_TIMER_COUNTER	(0x10011000 + 0x4)
+#define CONFIG_SYS_TIMER_COUNTER	(V2M_TIMER01 + 0x4)
 #define CONFIG_SYS_TIMER_COUNTS_DOWN
 
 /* SMSC9115 Ethernet from SMSC9118 family */