[release-1.10] 301 redirect in VirtualHost when server HttpsRedirect true

[istio-testing]

Manual cherrypick required.

#34689 failed to apply on top of branch "release-1.10":

Applying: create virtualhost with require_tls ALL when there is HttpsRedirect in gateway server
Applying: fix httpspport with rredirection enabled will create vHost from virtualservice
Applying: remove duplicate code
Applying: add integration tests
Using index info to reconstruct a base tree...
M	tests/integration/pilot/common/routing.go
Falling back to patching base and 3-way merge...
Auto-merging tests/integration/pilot/common/routing.go
CONFLICT (content): Merge conflict in tests/integration/pilot/common/routing.go
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0004 add integration tests
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

[istio-policy-bot]

🚧 This issue or pull request has been closed due to not having had activity from an Istio team member since 2021-08-30. If you feel this issue or pull request deserves attention, please reopen the issue. Please see this wiki page for more information. Thank you for your contributions.

Created by the issue and PR lifecycle manager.