Fix spack build for RAJA: master requires submodules (#6052)
Fix spack build for RAJA: master requires submodules (#6052)

* Fix spack build for RAJA: master requires submodules

* Rename version: git to develop

LLNL/spack,iulian787/spack,mfherbst/spack,tmerrick1/spack,lgarren/spack,EmreAtes/spack,lgarren/spack,skosukhin/spack,matthiasdiener/spack,matthiasdiener/spack,LLNL/spack,LLNL/spack,mfherbst/spack,LLNL/spack,iulian787/spack,skosukhin/spack,iulian787/spack,krafczyk/spack,skosukhin/spack,EmreAtes/spack,matthiasdiener/spack,EmreAtes/spack,EmreAtes/spack,LLNL/spack,krafczyk/spack,matthiasdiener/spack,matthiasdiener/spack,EmreAtes/spack,krafczyk/spack,lgarren/spack,krafczyk/spack,iulian787/spack,mfherbst/spack,iulian787/spack,mfherbst/spack,lgarren/spack,skosukhin/spack,skosukhin/spack,lgarren/spack,tmerrick1/spack,tmerrick1/spack,tmerrick1/spack,tmerrick1/spack,mfherbst/spack,krafczyk/spack