[Fix] Fixes state change conf for stopping servers

[anton-sidelnikov]

Summary of the Pull Request

Added stateConf for stop operation

PR Checklist

• Refers to: opentelekomcloud_compute_instance_v2 stop_before_destroy custom shutdown timeout #2696
• Tests added/passed.
• Documentation updated.
• Schema updated.
• Release notes added.

Acceptance Steps Performed

=== RUN   TestAccComputeV2Instance_basic
=== PAUSE TestAccComputeV2Instance_basic
=== CONT  TestAccComputeV2Instance_basic
--- PASS: TestAccComputeV2Instance_basic (140.26s)
=== RUN   TestAccComputeV2Instance_imageByName
--- PASS: TestAccComputeV2Instance_imageByName (95.17s)
=== RUN   TestAccComputeV2Instance_multiSecgroup
=== PAUSE TestAccComputeV2Instance_multiSecgroup
=== CONT  TestAccComputeV2Instance_multiSecgroup
--- PASS: TestAccComputeV2Instance_multiSecgroup (151.43s)
=== RUN   TestAccComputeV2Instance_bootFromImage
=== PAUSE TestAccComputeV2Instance_bootFromImage
=== CONT  TestAccComputeV2Instance_bootFromImage
--- PASS: TestAccComputeV2Instance_bootFromImage (84.34s)
=== RUN   TestAccComputeV2Instance_bootFromVolume
=== PAUSE TestAccComputeV2Instance_bootFromVolume
=== CONT  TestAccComputeV2Instance_bootFromVolume
--- PASS: TestAccComputeV2Instance_bootFromVolume (84.79s)
=== RUN   TestAccComputeV2Instance_importBootFromVolumeImage
=== PAUSE TestAccComputeV2Instance_importBootFromVolumeImage
=== CONT  TestAccComputeV2Instance_importBootFromVolumeImage
--- PASS: TestAccComputeV2Instance_importBootFromVolumeImage (106.86s)
=== RUN   TestAccComputeV2Instance_bootFromVolumeVolume
=== PAUSE TestAccComputeV2Instance_bootFromVolumeVolume
=== CONT  TestAccComputeV2Instance_bootFromVolumeVolume
--- PASS: TestAccComputeV2Instance_bootFromVolumeVolume (93.98s)
=== RUN   TestAccComputeV2Instance_metadata
=== PAUSE TestAccComputeV2Instance_metadata
=== CONT  TestAccComputeV2Instance_metadata
--- PASS: TestAccComputeV2Instance_metadata (114.41s)
=== RUN   TestAccComputeV2Instance_timeout
=== PAUSE TestAccComputeV2Instance_timeout
=== CONT  TestAccComputeV2Instance_timeout
--- PASS: TestAccComputeV2Instance_timeout (82.80s)
=== RUN   TestAccComputeV2Instance_autoRecovery
=== PAUSE TestAccComputeV2Instance_autoRecovery
=== CONT  TestAccComputeV2Instance_autoRecovery
--- PASS: TestAccComputeV2Instance_autoRecovery (120.35s)
=== RUN   TestAccComputeV2Instance_initialStateActive
=== PAUSE TestAccComputeV2Instance_initialStateActive
=== CONT  TestAccComputeV2Instance_initialStateActive
--- PASS: TestAccComputeV2Instance_initialStateActive (159.86s)
=== RUN   TestAccComputeV2Instance_initialStateShutoff
=== PAUSE TestAccComputeV2Instance_initialStateShutoff
=== CONT  TestAccComputeV2Instance_initialStateShutoff
--- PASS: TestAccComputeV2Instance_initialStateShutoff (193.96s)
=== RUN   TestAccComputeV2Instance_crazyNICs
=== PAUSE TestAccComputeV2Instance_crazyNICs
=== CONT  TestAccComputeV2Instance_crazyNICs
--- PASS: TestAccComputeV2Instance_crazyNICs (215.55s)
=== RUN   TestAccComputeV2Instance_changeFixedIP
=== PAUSE TestAccComputeV2Instance_changeFixedIP
=== CONT  TestAccComputeV2Instance_changeFixedIP
--- PASS: TestAccComputeV2Instance_changeFixedIP (90.18s)
PASS

Process finished with the exit code 0

[otc-zuul]

Build succeeded.
https://zuul.otc-service.com/t/eco/buildset/7910bbff284b4f7d87b378dd30b829e3

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✔️ noop SUCCESS in 0s
✔️ otc-golangci-lint SUCCESS in 3m 22s
✔️ golang-make-test SUCCESS in 3m 48s
✔️ golang-make-vet SUCCESS in 4m 42s
✔️ tflint SUCCESS in 1m 50s
✔️ goreleaser-build SUCCESS in 10m 50s