tests: increase timeout for vm shutdown

start_standalone_with_cdrom_vm test essence is somewhere else, let not
fail it for just slow shutdown (LVM cleanup etc).

qubes/tests/integ/basic.py

@@ -109,7 +109,7 @@ class TC_00_Basic(qubes.tests.SystemTestCase):
         # Type 'poweroff'
         subprocess.check_call(['xdotool', 'search', '--name', self.vm.name,
                                'type', 'poweroff\r'])
-        for _ in range(5):
+        for _ in range(10):
             if not self.vm.is_running():
                 break
             self.loop.run_until_complete(asyncio.sleep(1))
@@ -675,7 +675,7 @@ class TC_06_AppVMMixin(object):
         # Type 'poweroff'
         subprocess.check_call(['xdotool', 'search', '--name', self.vm.name,
                                'type', 'poweroff\r'])
-        for _ in range(5):
+        for _ in range(10):
             if not self.vm.is_running():
                 break
             self.loop.run_until_complete(asyncio.sleep(1))