vmm: Move devices creation to Vm creation

This moves the devices creation out of the dedicated restore function
which will be eventually removed.

This factorizes the creation of all devices into a single location.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

vmm/src/lib.rs

@@ -1253,6 +1253,9 @@ impl Vmm {
             activate_evt,
             true,
             timestamp,
+            None,
+            None,
+            None,
             Some(&snapshot),
         )
         .map_err(|e| {