Whitespace cleanup.
Set the hint for physical address of RSDP in hexadecimal as before r223262.
Fix implementation of sock_getname.

MFC after:	1 week
Assorted fixes to krping.  Disconnect the rest of sys/contrib/rdma from
the build while here.  sys/ofed has more recent RDMA code and should be
used instead.  We should probably move krping out of sys/contrib/rdma
and get rid of the rest of it.

Obtained from:	Chelsio