PlatformConfig: clean up and print all flags (#32369)

* script to print flags

* don't need

* SAL

* back

* fix

selfdrive/debug/print_flags.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+from openpilot.selfdrive.car.values import BRANDS
+
+for brand in BRANDS:
+  all_flags = set()
+  for platform in brand:
+    if platform.config.flags != 0:
+      all_flags |= set(platform.config.flags)
+
+  if len(all_flags):
+    print(brand.__module__.split('.')[-2].upper() + ':')
+    for flag in sorted(all_flags):
+      print(f'  {flag.name:<24}: ', end='')
+      for platform in brand:
+        if platform.config.flags & flag:
+          print(platform.name, end=', ')
+      print()
+    print()