Fix NetWare build: set NLM version with commandline option

instead of linker def file due to bug with mwldnlm linker
where patch version > 26 is ignored from def file.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1621588 13f79535-47bb-0310-9956-ffa450edef68