LU-15259 tests: skip acl tests if no bin/daemon users

LU-15259 tests: skip acl tests if no bin/daemon users

If the bin/daemon users are not configured on the test system, then
sanity test_103a, test_125, test_154a will fail with:

    $ setfacl -m u:bin:rw f -- failed
    -   ? setfacl: Option -m: Invalid argument near character 3

Skip these tests until they are fixed.

Lustre-change: https://review.whamcloud.com/45868
Lustre-commit: da7f2848a2aae2ec4852b23e55d23d42a30205ce

Test-Parameters: trivial clientdistro=sles15sp3
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I526f9318862577a6b73c3b63cfc95a3d793ebbe5
Reviewed-on: https://review.whamcloud.com/46141
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>