Merge pull request #265327 from roygara/restoreLim

Adding back limitation

Author: prmerger-automator[bot]

includes/disks-prem-v2-limitations.md

@@ -17,4 +17,5 @@ ms.custom:
 - Currently, Premium SSD v2 disks can't be attached to VMs in Availability Sets. 
 - Azure Site Recovery isn't supported for VMs with Premium SSD v2 disks.
 - Azure Backup support for VMs with Premium SSD v2 disks is currently in [public preview](/azure/backup/backup-support-matrix-iaas#vm-storage-support). 
-- The size of a Premium SSD v2 can't be expanded without either deallocating the VM or detaching the disk.  
+- The size of a Premium SSD v2 can't be expanded without either deallocating the VM or detaching the disk.
+- Premium SSDv2 doesn't support host caching.