update 3rdparty build shell script

guowenxue

2019-08-11 cdec77818bad5d64e1e3656645f49261f2cc3501

 3rdparty/openssh/build.sh

@@ -71,7 +71,7 @@
    SRC_NAME=openssh-8.0p1
    PACK_SUFIX=tar.gz

    if [ -f ${PREFIX_PATH}/bin/openssh ] ; then
    if [ -f ${PREFIX_PATH}/sbin/sshd ] ; then
        return 0;
    fi