[Mooncake]Cannot create Premium CDN profile with Premium_ChinaCdn SKU with CLI 2.0

Description

Outline the issue here: I can create premium CDN profile in Ibiza portal, when I run az cdn profile list , I can see the SKU name is **Premium_ChinaCdn ** as below:

C:\Users\v-johch>az cdn profile list
[
  {
    "id": "/subscriptions/cc124843-d4b8-4a3a-8edf-1314908bda90/resourcegroups/premiumcdn/providers/Microsoft.Cdn/profiles/testcdn",
    "location": "ChinaEast",
    "name": "testcdn",
    "provisioningState": "Succeeded",
    "resourceGroup": "premiumcdn",
    "resourceState": "Active",
    "sku": {
      "name": "Premium_ChinaCdn"
    },
    "tags": {},
    "type": "Microsoft.Cdn/profiles"
  }
]

However, when I try to create another new premium CDN profile with the same SKU via CLI, it says invalid the SKU is invalid:

C:\Users\v-johch>az cdn profile create -g premiumcdn -n testpremium --sku Premium_ChinaCdn
az cdn profile create: error: argument --sku: invalid choice: Premium_ChinaCdn
usage: az cdn profile create [-h] [--output {json,tsv,table,jsonc}]
                             [--verbose] [--debug] [--query JMESPATH]
                             --resource-group RESOURCE_GROUP_NAME --name NAME
                             [--sku {Standard_Verizon,Premium_Verizon,Custom_Verizon,Standard_Akamai,Standard_ChinaCdn}]
                             [--location LOCATION] [--tags [TAGS [TAGS ...]]]

---

Environment summary

Install Method: How did you install the CLI? (e.g. pip, interactive script, apt-get, Docker, MSI, nightly)
Answer here: MSI

CLI Version: What version of the CLI and modules are installed? (Use az --version)
Answer here: azure-cli (2.0.17)

OS Version: What OS and version are you using?
Answer here: Win 10 version 1703 (OS Build 15063.608)

Shell Type: What shell are you using? (e.g. bash, cmd.exe, Bash on Windows)
Answer here: cmd.exe

[devigned]

This issue should stay open until the new API version is available in the specs repo and generated.

[t-bzhan]

The issue is fixed now