ARM: dts: amlogic: meson8-minix-neo-x8: fix invalid pnictrl-names

ARM: dts: amlogic: meson8-minix-neo-x8: fix invalid pnictrl-names

The property pnictrl-names is wrong, rename it to pinctrl-names and fix:
ethernet@c9410000: Unevaluated properties are not allowed ('clock-names', 'clocks', 'interrupt-names', 'interrupts', 'pnictrl-names', 'power-domains' were unexpected)
	from schema $id: http://devicetree.org/schemas/net/amlogic,meson-dwmac.yaml#

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20240916-topic-amlogic-arm32-upstream-bindings-fixes-v2-9-0b20ed4f0571@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>