net: mvneta: Use DM MDIO API for connecting PHY

Use the modern DM MDIO API for connecting PHY in the mvneta driver.

This requires enabling MVMDIO driver in several config files.

Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index da56326..7fe0e00 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -445,6 +445,7 @@
 	bool "Marvell Armada XP/385/3700 network interface support"
 	depends on ARMADA_XP || ARMADA_38X || ARMADA_3700
 	select PHYLIB
+	select DM_MDIO
 	help
 	  This driver supports the network interface units in the
 	  Marvell ARMADA XP, ARMADA 38X and ARMADA 3700 SoCs