Automatic merge from submit-queue (batch tested with PRs 52355, 52537, 52551, 52403, 50673). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..

Azure - Use cloud environment to instantiate storage client

**What this PR does / why we need it**:
Since 1.7 and managed disk for azure, blob storage on Azure cloud other than the default public one is broken, because kubernetes expect blob ressources URI to end with `.blob.core.windows.net ` (ignoring storageEndpointSuffix).
This include the chinese Cloud, for which storageEndpointSuffix is `blob.core.chinacloudapi.cn` for example.

See : https://github.com/Azure/azure-storage-go/blob/master/client.go#L194

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```