dt-bindings: opp: Allow hyphen in node's name

Not all OPP table names and OPP entries consist of a single word. In
particular NVIDIA Tegra OPP tables use multi-word names. Allow OPP node
and OPP entry name to have hyphens to silence DT checker warnings about
the multi-word names separated by hyphen.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>

Author: digetx

Documentation/devicetree/bindings/opp/opp-v2-base.yaml

@@ -22,7 +22,7 @@ select: false
 
 properties:
   $nodename:
-    pattern: '^opp-table(-[a-z0-9]+)?$'
+    pattern: '^opp-table(-[a-z0-9-]+)*$'
 
   opp-shared:
     description:
@@ -33,7 +33,7 @@ properties:
     type: boolean
 
 patternProperties:
-  '^opp-?[0-9]+$':
+  '^opp(-[0-9]+)*$':
     type: object
     description:
       One or more OPP nodes describing voltage-current-frequency combinations.