net: eepro100: Add Kconfig entries

Add Kconfig entries for the eepro100 driver and convert various boards.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
diff --git a/configs/MPC8315ERDB_defconfig b/configs/MPC8315ERDB_defconfig
index bbb79df..d7981e9 100644
--- a/configs/MPC8315ERDB_defconfig
+++ b/configs/MPC8315ERDB_defconfig
@@ -147,6 +147,7 @@
 CONFIG_PHY_REALTEK=y
 CONFIG_PHY_SMSC=y
 CONFIG_PHY_VITESSE=y
+CONFIG_EEPRO100=y
 CONFIG_MII=y
 CONFIG_TSEC_ENET=y
 CONFIG_SYS_NS16550=y