[RFR] Use new_configuration rather than changes for reconfigure dict

[john-dupuy]

Due to recent changes in the reconfigure function for reconfiguring a VM, this test is failing with

>       for network_adapters_change in changes['network_adapters']:
E       KeyError: 'network_adapters'

This is because a changes dict was supplied rather than a new_configuration dict.

integration_tests/cfme/infrastructure/virtual_machines.py

Lines 1096 to 1097 in b5cbdba

	if new_configuration:
	changes = self.configuration.get_changes_to_fill(new_configuration)

{{ pytest: --long-running --use-provider vsphere65-nested cfme/tests/control/test_alerts.py::test_alert_hardware_reconfigured }}

[john-dupuy]

Tests are failing due to firewall (closed ports) on PRT, the targeted fix is valid though.