regulator: Add property for I2C level shifter

By setting nxp,i2c-lt-enable the I2C level translator is
enabled.
Signed-off-by: Per-Daniel Olsson <perdo@axis.com>
Signed-off-by: Rickard x Andersson <rickaran@axis.com>
Link: https://lore.kernel.org/r/20220429072211.24957-1-rickaran@axis.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml

@@ -92,6 +92,11 @@ properties:
       LDO5CTRL_L or LDO5CTRL_H register. Use this if the SD_VSEL signal is
       connected to a host GPIO.
 
+  nxp,i2c-lt-enable:
+    type: boolean
+    description:
+      Indicates that the I2C Level Translator is used.
+
 required:
   - compatible
   - reg