Linux beaglebone 4.0.0-bone0 - problem with clkout2_pin

Hi all.
Once I upgraded BBB to 4.0 I have noticed section below, which configures P9_41.

&am33xx_pinmux {
pinctrl-names = “default”;
pinctrl-0 = <&clkout2_pin>;

I need this pin to work as gpio output.
Is it safe to disable this and release the P9_41 pin?

What does clkout2 do?
Why this section is almost everywhere in .dts, dtsi files?

Kind Regards

I’m having this exact same problem. Did you ever find a solution?