Fixed OpenBSD header include order.

src/common/acl.c

src/common/latency.c

src/common/latency.h

src/knot/server/socket.c

src/knot/server/socket.h

src/knot/server/tcp-handler.c

src/knot/server/udp-handler.c

src/knot/server/xfr-handler.c

src/knot/stat/stat.c

src/knot/stat/stat.h

src/tests/knot/rrl_tests.c

src/zcompile/parser-util.c