Missing 'interface' in Clean Step

Add 'interface': 'deploy' to the clean step configuration to avoid the error

Change-Id: Ie2297fc3375f6e0a389fa19789506a72fcf967e7

examples/business-logic/example_business_logic.py

@@ -73,6 +73,7 @@ class ExampleBusinessLogicHardwareManager(hardware.HardwareManager):
         return [{
             'step': 'companyx_verify_device_lifecycle',
             'priority': 472,
+            'interface': 'deploy',
             # If you need Ironic to coordinate a reboot after this step
             # runs, but before continuing cleaning, this should be true.
             'reboot_requested': False,

examples/vendor-device/example_device.py

@@ -120,6 +120,7 @@ class ExampleDeviceHardwareManager(hardware.HardwareManager):
         return [{
             'step': 'upgrade_example_device_model1234_firmware',
             'priority': 37,
+            'interface': 'deploy',
             # If you need Ironic to coordinate a reboot after this step
             # runs, but before continuing cleaning, this should be true.
             'reboot_requested': True,