nxp,imx-gpt.yaml binding file should be in dts/bindings/counter folder, not dts/bindings/timer

[butok]

Describe the bug

There is an issue in the generated supported features for Timer/Counter type.

To reproduce the issue:

• Go to https://docs.zephyrproject.org/latest/boards/nxp/mimxrt1170_evk/doc/index.html#supported-features
• See that "NXP MCUX General-Purpose Timer (GPT)", bind to "nxp,imx-gpt", is marked as the "Timer" type:

- It must be a "Counter" not "Timer":

[JarmouniA]

Because it's in the timer folder dts/bindings/timer/nxp,imx-gpt.yaml :)

[kartben]

@butok as mentioned, you will want to move this binding to counter to dts/bindings/counter :) should be as simple as that AFAICT :)