[ETH] Phy ID configurable as parameter
[ETH] Make support of ethernet for F1 family
[ETH] Make possibility to set other MAC addresses
[ETH] Provide enable/disable functions
[ETH] Initialize ethernet with specified PHY chip ID
[ETH] Make other changes in eth_init
[ETH] Some changes to eth_init
Rest of changes in PR377, this commit should be removed (BuFran)