enc28j60: set pad and crc configuration (fixed for now).
enc28j60: Bugfix - Write 0x0c to MAIPGH only for half-duplex.
enc28j60: Initialize ethernet buffer.
enc28j60: Initialize PHY.
enc28j60: Made setting MAC addres and framelen their own static functions.
enc28j60: Write device configuration to console for debugging.
enc28j60: Test enc_bank() selection function.
netio: Use enc28j60 in half-duplex mode for now.
lsh: Created stub for spi command.