syslog configuration update for log4j2

[DaanHoogland]

Description

This PR updates the syslog configuration log4j 2. The configuration as was includes non-existent elements and seems incomplete.

Types of changes

• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] Enhancement (improves an existing feature and functionality)
• [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
• [ ] build/CI
• [ ] test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• [ ] Major
• [ ] Minor

Bug Severity

• [ ] BLOCKER
• [ ] Critical
• [ ] Major
• [ ] Minor
• [ ] Trivial

Screenshots (if appropriate):

How Has This Been Tested?

On a server the lines as in this PR were changed and rsyslog was configured with the imtcp module. Messages would then appear in /various/log/messages

How did you try to break this feature and the system with this change?