USB-C Connector: How to properly route on EAGLE CAD to supply power to PCB
If you want power between Vbus and GND then you’ll need to terminate one of the CC pins. 

If terminated correctly you should be able to draw 500mA at 5V without the need for negotiation. 

You can read more in this Cypress document or this Silicon Labs Note. 

You may find it easier to use a USB2 specific connector such as micro-B, though you’d be limited to 100mA (by the specification, many wall chargers and even hosts don’t limit it).