LU-10344 test: create files on local node in sanity-hsm

LU-10344 test: create files on local node in sanity-hsm

In sanity-hsm, rewrite create_file() to call dd ... directly rather
than do_facet $SINGLEAGT dd ... Rewrite create_archive_file() to call
do_facet $SINGLEAGT ... directly instead of calling
create_file(). Move the Lustre parent directory creation from
create_archive_file() to import_file().

Test-Parameters: trivial testlist=sanity-hsm

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I923475c32fa69b0ac59b95b90b42c147cf361274
Reviewed-on: https://review.whamcloud.com/30433
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Faccini Bruno <bruno.faccini@intel.com>