dt-bindings: mux: Remove nodename pattern constraints

The nodename pattern in  created an unnecessary restriction that forced
all mux nodes to be named with the 'mux-controller' prefix.
This prevented valid use cases where mux functionality is part of other
hardware blocks that should use more specific naming conventions.

Remove the $nodename pattern constraints from both the 'select' keyword
and the properties section of the mux-controller schema.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/dbe73c0777eca61cf14442f4082caae62b61805a.1769703480.git.tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/mux/mux-controller.yaml

@@ -63,18 +63,12 @@ description: |
 
 select:
   anyOf:
-    - properties:
-        $nodename:
-          pattern: '^mux-controller'
     - required:
         - '#mux-control-cells'
     - required:
         - '#mux-state-cells'
 
 properties:
-  $nodename:
-    pattern: '^mux-controller(@.*|-([0-9]|[1-9][0-9]+))?$'
-
   '#mux-control-cells':
     enum: [ 0, 1 ]