LU-11779 tests: add version check for sanity-hsm

LU-11779 tests: add version check for sanity-hsm

sanity-hsm test 255 was added to Lustre tag 2.12.0.
sanity-hsm test 260c was modified with Lustre tag 2.12.0.
Thus, we need to check that the server is 2.12.0
or later before running these tests.

Fixes: e7d5c1681c07 (LU-11653 hsm: copytool registration wakes the coordinator)
Fixes: b84bc6d895a0 (LU-11572 tests: make sanity-hsm test_260c reliable)
Test-Parameters: trivial serverjob=lustre-b2_10 serverbuildno=168 testlist=sanity-hsm
Test-Parameters: testlist=sanity-hsm
Signed-off-by: James Nunez <jnunez@whamcloud.com>
Change-Id: I1a5369ec864432a241a875c3430baa5a064b0dfe
Reviewed-on: https://review.whamcloud.com/34589
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Wei Liu <sarah@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>