CodeGen from PR 21040 in Azure/azure-rest-api-specs

[Hub Generated] Review request for Microsoft.Network to add version preview/2021-02-01-preview (Azure#21040)

* NSP Link API changes

* minor fix

* fix errors

* fix error

* fix error

* fix lint error

* skip location from proxy resource

* fix sdk error

* fix linter check

* immutability flag changes

* removed v2 properties.

* minor fix

* removed default value as it is not supported by swagger

* make outbound profile read only

* minor change

* add x-ms-long-running-operation-options

* Fix review comments

* minor fix

sdk/network/Azure.ResourceManager.Network/src/autorest.md

@@ -6,7 +6,7 @@ Run `dotnet build /t:GenerateCode` to generate code.
 azure-arm: true
 library-name: Network
 namespace: Azure.ResourceManager.Network
-require: https://github.com/Azure/azure-rest-api-specs/blob/7384176da46425e7899708f263e0598b851358c2/specification/network/resource-manager/readme.md
+require: /mnt/vss/_work/1/s/azure-rest-api-specs/specification/network/resource-manager/readme.md
 tag: package-track2-preview
 output-folder: $(this-folder)/Generated
 clear-output-folder: true