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

Following commit b0de7fa706
("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 <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20230328060032.1983381-1-peng.fan@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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

@@ -38,12 +38,6 @@ properties:
         description:
           Properties for single LDO regulator.
 
-        properties:
-          regulator-name:
-            pattern: "^ldo[1-4]$"
-            description:
-              should be "ldo1", ..., "ldo4"
-
         unevaluatedProperties: false
 
       "^buck[1-7]$":
@@ -53,11 +47,6 @@ properties:
           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
@@ -90,12 +79,6 @@ properties:
         description:
           Properties for single VSNVS regulator.
 
-        properties:
-          regulator-name:
-            pattern: "^vsnvs$"
-            description:
-              should be "vsnvs"
-
         unevaluatedProperties: false
 
     additionalProperties: false