zdtm: Add checkskip scripts for OFD locks

This is needed in cases when kernel doesn't support OFD locks.
(OFD locks were added in 2014).

travis-ci: success for zdtm: Add checkskip scripts for OFD locks
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Eugene Batalov <eabatalov89@gmail.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

test/zdtm/static/file_locks06.checkskip

+#!/usr/bin/env python2
+import fcntl
+import tempfile
+import struct
+import errno
+
+F_OFD_SETLK = 37
+
+try:
+	with tempfile.TemporaryFile() as fd:
+		flock = struct.pack('hhllhh', fcntl.F_RDLCK, 0, 0, 0, 0, 0)
+		fcntl.fcntl(fd.fileno(), F_OFD_SETLK, flock)
+except IOError as e:
+	if e.errno == errno.EINVAL:
+		print "I/O error({0}): {1}".format(e.errno, e.strerror)
+		print "OFD locks are not supported."
+		exit(1)
+
+exit(0)

test/zdtm/static/file_locks07.checkskip

+file_locks06.checkskip
\ No newline at end of file

test/zdtm/static/file_locks08.checkskip

+file_locks06.checkskip
\ No newline at end of file