Fixing traceur selinux permission error

getattr for trace_data_file:dir permissions was missing, impacting
functionality.

Bug:68126425
Test: Traceur functionality is properly working
Change-Id: I2c8ae5cf3463a8e5309b8402713744e036a64171

private/traceur_app.te

@@ -5,6 +5,6 @@ userdebug_or_eng(`
   allow traceur_app debugfs_tracing:file rw_file_perms;
   allow traceur_app debugfs_tracing_debug:file rw_file_perms;
   allow traceur_app trace_data_file:file create_file_perms;
-  allow traceur_app trace_data_file:dir { add_name search write };
+  allow traceur_app trace_data_file:dir { add_name getattr search write };
   allow traceur_app atrace_exec:file rx_file_perms;
 ')