HV: vuart: add vuart_deinit during vm shutdown

Add vuart_deinit to vm shutdown so that the vuart resource can be
reset, and when the Guest VM restart, it could have right state.

Tracked-On: #2987
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

Author: conghuic23

hypervisor/arch/x86/guest/vm.c

@@ -564,6 +564,8 @@ int32_t shutdown_vm(struct acrn_vm *vm)
 
 		vpci_cleanup(vm);
 
+		vuart_deinit(vm);
+
 		ptdev_release_all_entries(vm);
 
 		/* Free iommu */