Kokkos libs added to FleCSI-Tut target when Kokkos is enabled, even if ENABLE_FLECSI_TUTORIAL=OFF

[scothalverson]

There should be another check here for ENABLE_FLECSI_TUTORIAL:

flecsi/config/project.cmake

Line 559 in 7c44949

FleCSI-Tut ${Kokkos_LIBRARIES}