arm64: dts: amlogic: gxbb-odroidc2: fix invalid reset-gpio property

This fixes the following:
hub@1: 'reset-gpio' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/usb/genesys,gl850g.yaml#



Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Link: https://lore.kernel.org/r/20240606-topic-amlogic-upstream-bindings-fixes-dts-v1-12-62e812729541@linaro.org


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>