[FIX] hw_drivers: Fix for Customer display

When a box was unable to reach the Odoo server the customer display
show a white screen.

With this fix we show the default POS Client display with IP address

closes odoo/odoo#38315

X-original-commit: 290c2be72cd8305fbf8093d782604e8b0f4a80c4
Signed-off-by: Quentin Lejeune (qle) <qle@odoo.com>

addons/hw_drivers/drivers/DisplayDriver.py

@@ -92,7 +92,7 @@ class DisplayDriver(Driver):
                 urls = json.loads(response.data.decode('utf8'))
                 return self.update_url(urls[self.device_identifier])
             except json.decoder.JSONDecodeError:
-                return self.update_url(response.data.decode('utf8'))
+                return self.update_url(response.get(data.decode('utf8'), False))
             except Exception:
                 pass
         return self.update_url()