reorder s390 ptff export ahead of its consumer in 7.1 and 6.18

reorder s390 ptff export ahead of its consumer in 7.1 and 6.18

Reordered patches:

- "s390/ptff: Export ptff_function_mask[]"
  Upstream: 9de445d8296a7f2b011ebb5834fdc94dcda5c778
  Queues: 7.1, 6.18
  Reason: this export is the prerequisite for "ptp: ptp_s390: Add missing
    facility check" (e78f1ac37afcb16cb6fef8a2c92591eab6558956), whose
    ptff_query() use needs ptff_function_mask[]. Both were queued, but the
    export landed after its consumer in the series (7.1: 744 vs 666,
    6.18: 676 vs 544), so applying the series in order leaves an
    intermediate commit that fails to build on s390x. Moved the export to
    immediately before the consumer in both series files. No patch files
    were added or removed; both patches stay queued.
  Report: https://lore.kernel.org/stable/669b8e16-19a6-49bf-a1ef-a7bce5075a9a@kernel.org/

Signed-off-by: Sasha Levin <sashal@kernel.org>