Only declare functions when respective config symbol is defined.
lsh: Created ifconfig stub.
lsh: Unified use of macro conditionals for lsh command integration.
enc28j60: Added comments to functions.
enc28j60: Added stub for update function to be used during development.
enc28j60: Added symbol for GPIO data input register for interrupt pin.
Added task for enc28j60 ethernet controller.
enc28j60: Enable reception after initialization.
enc28j60: Debug notification for when interrupt is signaled from controller or the packet counter gets incremented.
net: Added preliminary eth0 receive packet counter variable.
lsh: Make ifconfig read the rx packet count from global var defined in net.c.
enc28j60: Read and update rx packet count for interface.