LU-14669 tests: reduce time spent in sanity-sec

LU-14669 tests: reduce time spent in sanity-sec

Several tests in sanity-sec loop over a number of nodemaps (16),
a number of NID ranges (3), a number of IP addresses (6) and a
number of mapped IDs (10).
Whereas the benefits for test coverage of such a large number of
combinations is not clear, looping over all this certainly takes
a lot of time.
So arbitrarily reduce that to smaller numbers in case SLOW!=yes:
- 3 nodemaps;
- 2 NID ranges;
- 2 IP addresses;
- 3 mapped ID
This reduces the test time for sanity-sec from ~12000s to ~7500s.

Similarly, test_fops function, used by tests 16,17,18,19,20,21,22,
loops over a number of users (4), a number of mapped IDs (6), a
number of permission bit masks (4), and for each client.
Arbitrarily reduce that to smaller numbers in case SLOW!=yes, to
save test time without degrading test coverage:
- 2 users;
- 4 mapped IDs;
- 2 permission bit masks;
- from only one client.
This further reduces the test time from ~7500s to ~5000s.

Test-Parameters: trivial
Test-Parameters: mdscount=2 mdtcount=4 osscount=1 ostcount=8 clientcount=2 clientdistro=el8.3 serverdistro=el8.3 testlist=sanity-sec
Test-Parameters: mdscount=2 mdtcount=4 osscount=1 ostcount=8 clientcount=2 clientdistro=el8.3 serverdistro=el8.3 testlist=sanity-sec env=SLOW=yes
Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Change-Id: Idbe9c8daca43feafe7ca6481902cf6b54e3fa87c
Reviewed-on: https://review.whamcloud.com/43543
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Nunez <jnunez@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>