Merge pull request #55987 from andyzhangx/azure-reviewer

Automatic merge from submit-queue. 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>.

add andyzhangx as azure reviewer

**What this PR does / why we need it**:
add andyzhangx as azure reviewer

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

**Special notes for your reviewer**:

**Release note**:

```
none
```

/sig azure
/assign @jdumars @brendandburns

pkg/cloudprovider/providers/azure/OWNERS

@@ -2,3 +2,5 @@ approvers:
 - brendandburns
 - colemickens
 - jdumars
+reviewers:
+- andyzhangx

pkg/volume/azure_dd/OWNERS

@@ -8,3 +8,4 @@ reviewers:
 - jsafrane
 - jingxu97
 - msau42
+- andyzhangx

pkg/volume/azure_file/OWNERS

@@ -8,3 +8,4 @@ reviewers:
 - jsafrane
 - jingxu97
 - msau42
+- andyzhangx