hg: bsd-port/jdk8: . Restore OpenBSD's check for ld needing -z wxneeded and

[kurt at intricatesoftware.com]

Changeset: d5537650e37f
Author:    Kurt Miller <kurt at intricatesoftware.com>
Date:      2019-01-21 20:41 -0500
URL:       http://hg.openjdk.java.net/bsd-port/jdk8/rev/d5537650e37f

. Restore OpenBSD's check for ld needing -z wxneeded and
regen generated-configure.sh.

! common/autoconf/generated-configure.sh
! common/autoconf/toolchain.m4