net: sh-eth: Add to Kconfig and convert

This adds SH_ETHER to drivers/net/Kconfig and convert to Kconfig.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/configs/armadillo-800eva_defconfig b/configs/armadillo-800eva_defconfig
index d9a5169..14d6c84 100644
--- a/configs/armadillo-800eva_defconfig
+++ b/configs/armadillo-800eva_defconfig
@@ -27,6 +27,7 @@
 # CONFIG_CMD_MISC is not set
 CONFIG_ENV_IS_IN_FLASH=y
 # CONFIG_MMC is not set
-CONFIG_PHYLIB=y
+CONFIG_NETDEVICES=y
+CONFIG_SH_ETHER=y
 CONFIG_SCIF_CONSOLE=y
 CONFIG_OF_LIBFDT=y