dnet: DNET should depend on HAS_IOMEM

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 435e2e3..62d732a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1042,7 +1042,7 @@
 
 config DNET
 	tristate "Dave ethernet support (DNET)"
-	depends on NET_ETHERNET
+	depends on NET_ETHERNET && HAS_IOMEM
 	select PHYLIB
 	help
 	  The Dave ethernet interface (DNET) is found on Qong Board FPGA.