[CSTACKEX-194] Storage Pool Creation Fix (#62)

### Description
Storage Pool Creation is failing "message": "Unexpected argument
\"svm.iscsiEnabled\"

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### Types of changes

- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] New feature (non-breaking change which adds functionality)
- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] Enhancement (improves an existing feature and functionality)
- [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
- [ ] Build/CI
- [ ] Test (unit or integration test code)

### Feature/Enhancement Scale or Bug Severity

#### Feature/Enhancement Scale

- [x] Major
- [ ] Minor

#### Bug Severity

- [ ] BLOCKER
- [ ] Critical
- [ ] Major
- [ ] Minor
- [ ] Trivial

### Screenshots (if appropriate):

<img width="1471" height="145" alt="image"
src="https://github.com/user-attachments/assets/f894ec2d-0769-4f6d-8ad3-13b3e6b2b5cc"
/>

<img width="2292" height="1672" alt="image"
src="https://github.com/user-attachments/assets/403bce30-c9a2-44ec-a783-cf65c1fa2bd9"
/>



### How Has This Been Tested?

1- Disable the NFS and ISCSI protocol on svm and checked the storage
pool creation: It threw the appropriate error on UI, below is the
screenshot
2- Enable the NFS and ISCSI protocol on svm: Storage pool creation went
fine


#### How did you try to break this feature and the system with this
change?

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Co-authored-by: Gupta, Surya <Surya.Gupta@netapp.com>

Author: 2 people

plugins/storage/volume/ontap/src/main/java/org/apache/cloudstack/storage/feign/model/Svm.java

@@ -38,10 +38,13 @@ public class Svm {
     @JsonProperty("name")
     private String name = null;
 
+    @JsonIgnore
     private Boolean iscsiEnabled = null;
 
+    @JsonIgnore
     private Boolean fcpEnabled = null;
 
+    @JsonIgnore
     private Boolean nfsEnabled = null;
 
     @JsonProperty("aggregates")