[TOPIC-GPIO] Convert actinius_icarus and degu_evk boards to new GPIO API

[anangl]

Pairs of gpio_pin_configure/gpio_pin_write are replaced with calls to
gpio_pin_configure that configure a given pin as output with the proper
initial state.

[anangl]

@alextsam Could you verify that the changes for the actinius_icarus board are correct? I don't have such board at hand to check it myself. @takumiando Could you check the changes for the degu_evk board? I don't have this one either.

[takumiando]

@anangl Thank you for your fix! I checked and approved your changes.

[alextsam]

@anangl the changes are good, thank you! However, should I update also the device tree to use the new defines? eg currently we have GPIO_INT_ACTIVE_LOW which I guess should be replaced with GPIO_ACTIVE_LOW etc

[mnkp]

should I update also the device tree to use the new defines? eg currently we have GPIO_INT_ACTIVE_LOW which I guess should be replaced with GPIO_ACTIVE_LOW etc

Thanks @alextsam for pointing it out. I overlooked this during the review. It's best if we do it in this PR. I'm marking it as changes requested.

[anangl]

should I update also the device tree to use the new defines? eg currently we have GPIO_INT_ACTIVE_LOW which I guess should be replaced with GPIO_ACTIVE_LOW etc

Thanks @alextsam for pointing it out. I overlooked this during the review. It's best if we do it in this PR. I'm marking it as changes requested.

Yes, my bad, I focused only on changes in code and forgot about dts files. Thanks @alextsam!
I'll update dts files for both boards in a moment.

[alextsam]

Thank you very much for the changes! One small thing that I just noticed is line 102:

		irq-gpios = <&gpio0 28 0>, <&gpio0 29 0>;

the 0 did not matter there before, but now with the logical read this should be fixed to

		irq-gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>, <&gpio0 29 GPIO_ACTIVE_HIGH>;

Should I push to anangl:gpio/convert_nrf_boards so then you just squash?
@mnkp @anangl

[anangl]

@alextsam

the 0 did not matter there before, but now with the logical read this should be fixed to

		irq-gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>, <&gpio0 29 GPIO_ACTIVE_HIGH>;

There is no need to change it. GPIO_ACTIVE_HIGH has value of 0, and it is the default setting. In most such cases (not all, I know) 0 is used, not GPIO_ACTIVE_HIGH. Thus, I think it will be better to keep it as it is. See #16648 (comment).