[7.4.z.] DB instructions wrong when installing JDBC driver as core module

Description copied from BXMSDOC-4501 (link to comment):

Once you find the place to add the on the resulting page - https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.2/html/configuration_guide/datasource_management#install_a_jdbc_driver_as_a_core_module Step 12.3.2 – it states that in the management interface go to Configuration->Subsystems->Datasources&Drivers->Datasources. There is no Subsystems sub choice once the configuration page is loaded. Image attached. Further the command line commands will get the database in as a datasource, but you will not be able to connect to it because there is nothing to insert or provide login information to said database.

evidently EAP can support LDAP out of the box so why not show steps to get that working properly?

Notes:

• This is a customer-facing issue.
• In BXMSDOC-4501, it is indicated that 7.3 is also affected. Please investigate and clone if needed.