For the MityDSP-L138/MityARM-1808 SOMS, read the factory assigned
MAC address from the onboard I2C EPROM and assign it to the emac
device during platform initialization.
Signed-off-by: Michael Williamson <michael.williamson@criticallink.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>