Adjust vespa.spec openblas dependency for RHEL 8 / CentOS 8.
Adjust vespa.spec openblas dependency for RHEL 8 / CentOS 8.

vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa,vespa-engine/vespa