[SSSD] [sssd PR#708][comment] TESTS: ldb-tools are required for multihost tests

[mzidek-rh]

URL: https://github.com/SSSD/sssd/pull/708
Title: #708: TESTS: ldb-tools are required for multihost tests

mzidek-rh commented:
"""
I rebased this and added the sssd-tools as well.

I did not touch the RHEL 8 elif branch for now.
"""

See the full comment at https://github.com/SSSD/sssd/pull/708#issuecomment-504012086