arm64: dts: rockchip: Explicitly pinmux the regulator configuration GPIOs on rk3399-orangepi

Those GPIOs define which register is used by the GPU & CPUB regulators
for sleep mode. The register is defined here, so better have the GPIOs
explicitly set too.

Signed-off-by: Alexis Ballier <aballier@gentoo.org>
Cc: devicetree@vger.kernel.org
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20200206151025.3813-2-aballier@gentoo.org


Signed-off-by: Heiko Stuebner <heiko@sntech.de>