Enable VDI plugin auto upgrade

The default value is disabled (0) This option is required to enable the VDI plugin auto-update feature. Adding the policy on the VM will enable the VDI plugin auto-update to install or upgrade VDI plugins if the VDI auto-update component has been installed on the thin client. This feature is currently only supported for Windows devices. Adding this policy to the Windows Thin Client can be used to DISABLE the auto-update feature for a specific device. An example would be to add the policy for managed devices to disable updates internally, while still allowing auto-update to update users' personal devices at home. Enabled (1): Enable plugin auto-update. Disabled (0): Disable plugin auto-update.