regulator: dt-bindings: pf8x00: mark nxp,ilim-ma property as deprecated

This property seems useless because we can use the
regulator-max-microamp generic property to do the same
and using generic code.

As this property was already released in a kernel version,
we can't remove it, just mark it as deprecated
Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com>
Link: https://lore.kernel.org/r/20210114174714.122561-4-adrien.grassein@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml

@@ -62,8 +62,11 @@ properties:
             $ref: "/schemas/types.yaml#/definitions/uint32"
             minimum: 2100
             maximum: 4500
+            deprecated: true
             description:
               BUCK regulators current limit in mA.
+              This property is deprecated, please use
+              "regulator-max-microamp" instead.
 
               Listed current limits in mA are,
               2100 (default)