arm64: dts: renesas: hihope-common: Add PCA9654 I/O expander

Enable PCA9654 GPIO expander, so that we can configure its GPIOs later.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>