fix(valve): Correct VND7050AJ initialization and pin configuration

- Initialize RST pin as active to keep VND7050AJ out of reset state
- Clarify S0/S1 pins as output select pins with descriptive comments
- Add initialization logging to show configured max open/close times
- Ensure proper valve controller startup sequence

software/apps/slave_node/dts/bindings/vnd7050aj-valve-controller.yaml

@@ -0,0 +1,35 @@
+# VND7050AJ Valve Controller binding
+description: VND7050AJ valve controller GPIO configuration
+
+compatible: "vnd7050aj-valve-controller"
+
+properties:
+  in0-gpios:
+    type: phandle-array
+    description: GPIO for IN0 control signal
+    required: true
+
+  in1-gpios:
+    type: phandle-array
+    description: GPIO for IN1 control signal
+    required: true
+
+  rst-gpios:
+    type: phandle-array
+    description: GPIO for reset pin
+    required: true
+
+  sen-gpios:
+    type: phandle-array
+    description: GPIO for sense enable pin
+    required: true
+
+  s0-gpios:
+    type: phandle-array
+    description: GPIO for status/select 0 pin
+    required: true
+
+  s1-gpios:
+    type: phandle-array
+    description: GPIO for status/select 1 pin
+    required: true