socket: Associated IP:port information with error logs to make debugging easier

Change-Id: I4e7268f74b392c5cee8c7b8fc4bb5ab41d74dd04
BUG: 922780
Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-on: http://review.gluster.org/4686
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>