arm64: dts: rockchip: Enable the NPU on NanoPC T6/T6-LTS

Enable the NPU on FriendlyElec NanoPC T6/T6-LTS boards.
The regulator vdd_npu_s0 was already in place; since
the NPU power domain supply is now described, remove the
regulator's always-on.

Signed-off-by: Ricardo Pardini <ricardo@pardini.net>
Link: https://patch.msgid.link/20260101-arm64-dts-rockchip-rk3588-npu-enablements-v2-1-013cf5d5c39d@pardini.net
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: rpardini

arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi

@@ -458,7 +458,6 @@
 		reg = <0x42>;
 		fcs,suspend-voltage-selector = <1>;
 		regulator-name = "vdd_npu_s0";
-		regulator-always-on;
 		regulator-boot-on;
 		regulator-min-microvolt = <550000>;
 		regulator-max-microvolt = <950000>;
@@ -629,6 +628,10 @@
 	domain-supply = <&vdd_gpu_s0>;
 };
 
+&pd_npu {
+	domain-supply = <&vdd_npu_s0>;
+};
+
 &pinctrl {
 	gpio-leds {
 		sys_led_pin: sys-led-pin {
@@ -706,6 +709,37 @@
 	status = "okay";
 };
 
+&rknn_core_0 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_core_1 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_core_2 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_mmu_0 {
+	status = "okay";
+};
+
+&rknn_mmu_1 {
+	status = "okay";
+};
+
+&rknn_mmu_2 {
+	status = "okay";
+};
+
+
 &saradc {
 	vref-supply = <&avcc_1v8_s0>;
 	status = "okay";