operator-sdk and nodeAffinity changes

[Fryguy]

The new operator-sdk sets the following in the operator:

      spec:
        affinity:
          nodeAffinity:
            requiredDuringSchedulingIgnoredDuringExecution:
              nodeSelectorTerms:
              - matchExpressions:
                - key: kubernetes.io/arch
                  operator: In
                  values:
                  - amd64
+               - key: kubernetes.io/os
+                 operator: In
+                 values:
+                 - linux

That is, the kubernetes.io/os section is new. We should also update our other affinities to match.

[miq-bot]

This issue has been automatically marked as stale because it has not been updated for at least 3 months.

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