net: dm9000: Add Kconfig entry

Add Kconfig entry for the DM9000 MAC.

Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index a6171a7..347fe8a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -191,6 +191,11 @@
 	  This driver supports the XGMAC in Calxeda Highbank and Midway
 	  machines.
 
+config DRIVER_DM9000
+	bool "Davicom DM9000 controller driver"
+	help
+	  The Davicom DM9000 parallel bus external ethernet interface chip.
+
 config DWC_ETH_QOS
 	bool "Synopsys DWC Ethernet QOS device support"
 	depends on DM_ETH