linux: fix probing for noop_fsync

linux: fix probing for noop_fsync

Commit 267934d0e6910c8d8166a6e78f93c1bab40857b8 introduced
probing code to deal with the renameing of simple_fsync
inside the linux-kernel.
This test does not take different parameter-lists
for noop_fsync or simple_fsync resp. into account.
Fix this.

Reviewed-on: http://gerrit.openafs.org/6628
Reviewed-by: Marc Dionne <marc.c.dionne@gmail.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>
(cherry picked from commit 20e82cecd9008f9b3467c9a323c5c3abf27f3021)

Change-Id: I478a1ea15150ca120c8f85e9696d8bdedfc974d1
Reviewed-on: http://gerrit.openafs.org/6751
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>