Obtain two MAC addresses from the two EEPROMs and configure the two
available Ethernet interfaces accordingly.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Add new config for storing environment from sdmmc0.
Also clean-up sama7g5ek_emmc1 to point to the proper mmc device.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>