net: sunxi: Enable eeprom on OLinuXino Lime boards

This patch enables the I2C EEPROM to be probed for a MAC address on the
OLinuXino Lime1 and Lime2 boards. Other boards surely qualify as well
but were not tested yet.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
diff --git a/configs/A20-OLinuXino-Lime_defconfig b/configs/A20-OLinuXino-Lime_defconfig
index 4fe4e4a..564ae25 100644
--- a/configs/A20-OLinuXino-Lime_defconfig
+++ b/configs/A20-OLinuXino-Lime_defconfig
@@ -16,6 +16,10 @@
 # CONFIG_SPL_ISO_PARTITION is not set
 # CONFIG_SPL_EFI_PARTITION is not set
 CONFIG_ETH_DESIGNWARE=y
+CONFIG_NET_ETHADDR_EEPROM=y
+CONFIG_NET_ETHADDR_EEPROM_I2C=y
+CONFIG_NET_ETHADDR_EEPROM_I2C_BUS=1
+CONFIG_I2C1_ENABLE=y
 CONFIG_AXP_ALDO3_VOLT=2800
 CONFIG_AXP_ALDO4_VOLT=2800
 CONFIG_USB_EHCI_HCD=y