fix mtf issues when run tests (missing generated)

[jscotka]

• there is conu test in same directory as mtf tests, and in metadata.yaml there were *.py caused first issue
• pregenrated generated.py is not aviable anymore on that location
• have to call mtf-generator, to have generated.py available

[psklenar]

jenkins/superCI comment

• Status: failure, return code = 1
• Result url: https://da.gd/uxoC
• Comment: I have no permission to set up status in checks

[psklenar]

jenkins/superCI comment

• Status: failure, return code = 1
• Result url: https://da.gd/uxoC
• Comment: I have no permission to set up status in checks

[psklenar]

jenkins/superCI comment

• Status: failure, return code = 1
• Result url: https://da.gd/uxoC
• Comment: I have no permission to set up status in checks