conformance: Fixes to port and scheme redirect tests

[sunjayBhatia]

What type of PR is this?
/kind bug
/kind cleanup
/area conformance

What this PR does / why we need it:
Tests expected redirect host was not consistent with request host, were sending HTTPS requests send inconsistent SNI and Host, cert presented by Gateway did not have the correct SANs.

Which issue(s) this PR fixes:
Fixes #2038

Does this PR introduce a user-facing change?:

NONE

[robscott]

Thanks @sunjayBhatia! This LGTM but would like someone else to review.

/cc @arkodg @mlavacca
/approve
/cherry-pick release-0.7

[k8s-infra-cherrypick-robot]

@robscott: once the present PR merges, I will cherry-pick it on top of release-0.7 in a new PR and assign it to you.

In response to this:

Thanks @sunjayBhatia! This LGTM but would like someone else to review.

/cc @arkodg @mlavacca
/approve
/cherry-pick release-0.7

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/test-infra repository.

[shaneutt]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: robscott, shaneutt, sunjayBhatia

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

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Needs approval from an approver in each of these files:

• conformance/OWNERS [robscott,shaneutt]

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[k8s-infra-cherrypick-robot]

@robscott: new pull request created: #2042

In response to this:

Thanks @sunjayBhatia! This LGTM but would like someone else to review.

/cc @arkodg @mlavacca
/approve
/cherry-pick release-0.7

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/test-infra repository.