arm64: dts: amlogic: meson-axg-jethome-jethub-j1xx: remove invalid #gpio-cells in onewire node

Fixes the following bindings check errors:
 - #gpio-cells: [[1]] is not of type 'object'
 - 'gpio-controller' is a dependency of '#gpio-cells'

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Vyacheslav Bocharov <adeep@lexina.in>
Link: https://lore.kernel.org/r/20230207-b4-amlogic-bindings-fixups-v2-v1-3-93b7e50286e7@linaro.org


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