openscap missing sql probe due to missing dependency on OpenDbx

Description of problem: openscap is missing the sql probe.

Steps to Reproduce:

1. Run oscap --v

Actual results:

independent   sql                          probe_sql
independent   sql57                        probe_sql57

is missing from the output

Expected results:

independent   sql                          probe_sql
independent   sql57                        probe_sql57

should be in the output.

Additional info:

Relevant check in openscap's build system: https://github.com/OpenSCAP/openscap/blob/1.3.7/CMakeLists.txt#L264