test: call wait_for_up in Microvm.start()

Always block inside `Microvm.start()` until the vm has finished booting
(if a network device is present in the microvm). This means that we no
longer need `wait_for_up` calls after every `start()` call.

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

tests/framework/microvm.py

@@ -876,6 +876,9 @@ def start(self):
         # Check that the VM has started
         assert self.state == "Running"
 
+        if self.iface:
+            self.wait_for_up()
+
     def pause(self):
         """Pauses the microVM"""
         self.api.vm.patch(state="Paused")