Add support for Ultravisor log collection from Host#582

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sathnaga wants to merge 3 commits intoopen-power:masterfrom sathnaga:uvlog

Commits on Mar 27, 2020

Fixup: minor pep8 fixes and unused imports
Satheesh Rajendran
committed
Add support for ultravisor log collection
Satheesh Rajendran
committed
Add firmware logs collection for RunHostTest, InstallUpstreamKernel tests
Satheesh Rajendran
committed