MachinePool failure domain logging

[2uasimojo]

We are having lots of problems with MachinePool scaling since we introduced failure domain matching as the way to tell whether a generated MachineSet needs to be created, updated, or deleted on the spoke. This commit adds logging that prints the contents of the generated and remote failure domains when a mismatch is detected. It should help with FFDC in the field.

[2uasimojo]

/assign @lleshchi

[openshift-ci[bot]]

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 46.27%. Comparing base (bbda5ef) to head (7909fe7).

Files	Patch %	Lines
...g/controller/machinepool/machinepool_controller.go	0.00%	4 Missing :warning:

Additional details and impacted files

[](https://app.codecov.io/gh/openshift/hive/pull/2412?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openshift) ```diff @@ Coverage Diff @@ ## master #2412 +/- ## ========================================== - Coverage 46.28% 46.27% -0.01% ========================================== Files 279 279 Lines 32759 32762 +3 ========================================== Hits 15162 15162 - Misses 16324 16327 +3 Partials 1273 1273 ``` | [Files](https://app.codecov.io/gh/openshift/hive/pull/2412?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openshift) | Coverage Δ | | |---|---|---| | [...g/controller/machinepool/machinepool\_controller.go](https://app.codecov.io/gh/openshift/hive/pull/2412?src=pr&el=tree&filepath=pkg%2Fcontroller%2Fmachinepool%2Fmachinepool_controller.go&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openshift#diff-cGtnL2NvbnRyb2xsZXIvbWFjaGluZXBvb2wvbWFjaGluZXBvb2xfY29udHJvbGxlci5nbw==) | `53.48% <0.00%> (-0.20%)` | :arrow_down: |

[lleshchi]

/lgtm

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: 2uasimojo, lleshchi

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