scripts: ci: check_compliance: Simplify line number in loop

Use the builtin enumerate function rather than a manual variable.

Signed-off-by: Pieter De Gendt <[email protected]>

Author: pdgendt

scripts/ci/check_compliance.py

@@ -346,9 +346,7 @@ def parse_dt_bindings(self):
 
     def required_false_check(self, dts_binding):
         with open(dts_binding) as file:
-            line_number = 0
-            for line in file:
-                line_number += 1
+            for line_number, line in enumerate(file, 1):
                 if 'required: false' in line:
                     self.fmtd_failure(
                         'warning', 'Devicetree Bindings', dts_binding,