Temporary switch to Platinum license for CI.

- Correct the number of gpios and gpio controller's base address in dts.
- Loopback the gpios outputs to the inputs so that the output values is
read back from software (avoids the outputs looking like they are not
working).

Allow robotics cape to be included in gateware design with any name.

Support PWM and H bridge GPIO control for the Robotics cape.

Enable power to the camera module by default to simplify board testing.