dt-bindings: regulator: pf8x00: Remove restrictions for regulator-name

Following commit b0de7fa706506
("regulator: pca9450: Remove restrictions for regulator-name") to remove
the constraints on the regulator-name to allow using arbitrary and
descriptive names for the regulators.

Signed-off-by: Peng Fan <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

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

···
         description:
           Properties for single LDO regulator.
 
-        properties:
-          regulator-name:
-            pattern: "^ldo[1-4]$"
-            description:
-              should be "ldo1", ..., "ldo4"
-
         unevaluatedProperties: false
 
       "^buck[1-7]$":
···
           Properties for single BUCK regulator.
 
         properties:
-          regulator-name:
-            pattern: "^buck[1-7]$"
-            description:
-              should be "buck1", ..., "buck7"
-
           nxp,ilim-ma:
             $ref: /schemas/types.yaml#/definitions/uint32
             minimum: 2100
···
         $ref: regulator.yaml#
         description:
           Properties for single VSNVS regulator.
-
-        properties:
-          regulator-name:
-            pattern: "^vsnvs$"
-            description:
-              should be "vsnvs"
 
         unevaluatedProperties: false