Added Dell 240W charger for Dell TB16 dock

[Nosen92]

For the DS2502 Dell charger example, the data credentials for a nordic Dell 240W charger is added. This enables all features of the Dell TB16 dock. This setup is tested on a Dell XPS 9380 laptop and a Dell TB16 dock, using an Arduino Nano clone. HDMI, ethernet, and USB ports all confirmed working. DVI port and audio ports are untested. The XPS laptop BIOS reports sensing a 45W charger when charging through the dock, I suspect this is default behavior.