[functional][u] Support "record_info" in serial_failure_detection
|Category:||Enhancement to existing tests|
|Target version:||QA - future|
See https://github.com/os-autoinst/os-autoinst-distri-opensuse/pull/6589#issuecomment-456419001 . As the serial failure detection supports only "soft" and "hard" now we can fail the job or use "soft" but for this we want to always have a bugref so probably we should support to just set an info popup without altering the test result.
- AC1: serial issue detection can be used with a notice popup in test details but without altering the test result