nixos/networkd: fix typo of `tokenBucketFilterConfig`

Changed files
+1 -1
nixos
modules
system
+1 -1
nixos/modules/system/boot/networkd.nix
···
''
+ optionalString (def.tokenBucketFilterConfig != { }) ''
[TokenBucketFilter]
-
${attrsToSection def.tockenBucketFilterConfig}
+
${attrsToSection def.tokenBucketFilterConfig}
''
+ optionalString (def.pieConfig != { }) ''
[PIE]