Common networking template handles all nodes

[jirimacku]

This patch reverts a recent change in common networking template which gives a precedence to worker nodes causing all other nodes to be skipped.

[openshift-ci]

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[evallesp]

My problem with this is this is not going to work in 3+3 scenarios. As NNCP woul dbe configured in ocp-master nodes.
In the other hands this makes specific scenarios as scenarios were NNCP is set in master but also in worker (which is non-schedulable) for testing purpose.

IMO the common scenario should be the first one, and specific one is the second.
In any case, as a note here, we're going to work on adding a logic to take non-schedulable worker nodes, and if so, then we know NNCP shoul dbe configures in master but also in worker nodes: https://issues.redhat.com/browse/OSPRH-20534

More info of why we did this: https://issues.redhat.com/browse/OSPRH-15229

[jirimacku]

Replaced by this solution: #3424