arm64: dts: rockchip: Fix vccio4-supply on rk3566-pinetab2

Page 13 of the PineTab2 v2 schematic dd 20230417 shows VCCIO4's power
source is VCCIO_WL. Page 19 shows that VCCIO_WL is connected to
VCCA1V8_PMU, so fix the PineTab2 dtsi to reflect that.

Fixes: 1b7e194 ("arm64: dts: rockchip: Add devicetree for Pine64 PineTab2")
Cc: stable@vger.kernel.org
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Diederik de Haas <diederik@cknow-tech.com>
Link: https://patch.msgid.link/20251027155724.138096-1-diederik@cknow-tech.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: diederikdehaas

arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi

@@ -789,7 +789,7 @@
 	vccio1-supply = <&vccio_acodec>;
 	vccio2-supply = <&vcc_1v8>;
 	vccio3-supply = <&vccio_sd>;
-	vccio4-supply = <&vcc_1v8>;
+	vccio4-supply = <&vcca1v8_pmu>;
 	vccio5-supply = <&vcc_1v8>;
 	vccio6-supply = <&vcc1v8_dvp>;
 	vccio7-supply = <&vcc_3v3>;