dts: bindings: cp9314: Adds cirrus,hw-i2c-lock property

Documents cirrus,hw-i2c-lock property in the devicetree bindings. This
flag indicates that the control port write-lock was enabled in hardware
via the PGPIO2 pin.

Signed-off-by: Ricardo Rivera-Matos <[email protected]>

Author: rriveramcrus

dts/bindings/regulator/cirrus,cp9314.yaml

@@ -39,3 +39,9 @@ properties:
     description: |
       Desired switched capacitor ratio set at initialization. This entry will overwrite
       the selection set by the PROG resistor.
+
+  cirrus,hw-i2c-lock:
+    type: boolean
+    description: |
+      Indicate if the hardware write lock was enabled via the resistor value applied to
+      PGPIO2.