dnsmasq.conf: remove strict-order and add dns-forward-max

[ventifus]

Which issue this PR addresses:

Fixes ARO-2799 and ARO-15424

Companion PR to Azure/ARO-RP#4135

What this PR does / why we need it:

Implementation of ADR: https://docs.google.com/document/d/1nA1udF8RbJdpFgW3sezlEQGPMgqEQAZ7zvbCu18Zr5Q/

I also slipped in a small tweak to the etchosts template since my editor kept wanting to delete the trailing space from storage_files_testdata.go

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: ventifus
Once this PR has been reviewed and has the lgtm label, please assign hlipsig for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[openshift-ci]

@ventifus: all tests passed!

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.