absence of VSAN Storage Policy

##### ISSUE TYPE

* Bug Report

##### COMPONENT NAME

Categorize the issue, UI

##### CLOUDSTACK VERSION
4.17.2

##### CONFIGURATION
Vmware Hypervisor

##### OS / ENVIRONMENT
Ubuntu 20.04

##### SUMMARY
After Create VSAN Storage Policy In Vmware Vcenter, Cloudstack can not Import it and i dont have it in Adding Disk Offering in part of VMWAre Storage policy. It definitely needs to be imported via the API first before I can view it.

##### STEPS TO REPRODUCE
Add VSAN Storage Policy In Vcenter
Add Disk Offering In CLoudstack

##### EXPECTED RESULTS
i want to view That Storage Policy while adding Disk Offering

##### ACTUAL RESULTS
i cant view it in Cloudstack UI

先重現所描述的 VMware vCenter VSAN 儲存原則流程：建立原則，然後透過 UI 新增 CloudStack 磁碟方案。追蹤 API 和 UI 對 VMware 儲存原則的處理，並將匯入的原則與建立磁碟方案時顯示的原則進行比較。當 VSAN 原則無需另外手動透過 API 匯入即可在該 UI 中使用時，即表示完成。

由索引模型根據 Issue 內容生成。