forked from Imagelibrary/rtems
* libnetworking/kern/uipc_socket2.c, libnetworking/netinet/tcp_usrreq.c, libnetworking/netinet/udp_usrreq.c, libnetworking/rtems/rtems_bsdnet.h, libnetworking/rtems/rtems_glue.c: Add configuration parameters for network stack efficiency multiplier and default socket buffer sizes. Change default multiplier from 8 to 2 to match GNU/Linux. This has no impact on performance on the BSPs tested.