* Use full URL for sources.
* Drop -ffat-lto-objects in cflags as we do not build static libs.
* Add gmock and gtest BuildRequires to allow using system gtest for tests rather than re-building the bundled libs every time.
* Do not force 4 parallel threads when running ctest.
OBS-URL: https://build.opensuse.org/package/show/science/kokkos?expand=0&rev=32
