makes lwip use "unsigned int" instead of "unsigned" since this is
more obvious (i.e. type is not implied).
Change-Id: I852eb80484516e1235241d55be3e15174fa24109
- libnetsock - internal implementation of a socket on the lwip
server side. it encapsulates the asynchronous protocol
- lwip server - uses libnetsock to work with the asynchronous
protocol