scripts: Fix bindings style migration script

the script is in the utils subdir, which it didn't knew.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>

doc/releases/migration-guide-4.2.rst

@@ -102,7 +102,7 @@ Devicetree
 
 * Property names in devicetree and bindings use hyphens(``-``) as separators, and replacing
   all previously used underscores(``_``). For local code, you can migrate property names in
-  bindings to use hyphens by running the ``scripts/migrate_bindings_style.py`` script.
+  bindings to use hyphens by running the ``scripts/utils/migrate_bindings_style.py`` script.
 
 
 DAI

scripts/utils/migrate_bindings_style.py

@@ -17,7 +17,7 @@ import yaml
 # bindings base
 BINDINGS_PATH = [Path("dts/bindings/")]
 BINDINGS_PROPERTIES_AL = None
-with open(Path(__file__).parent / 'bindings_properties_allowlist.yaml') as f:
+with open(Path(__file__).parents[1] / 'bindings_properties_allowlist.yaml') as f:
     allowlist = yaml.safe_load(f.read())
     if allowlist is not None:
         BINDINGS_PROPERTIES_AL = set(allowlist)