su and perfprofd are coredomain too

This is a follow-up to f5446eb1 where
I forgot to associate su and perfprofd domains with coredomain.

Test: mmm system/sepolicy
      sepolicy-analyze $OUT/root/sepolicy attribute coredomain
Bug: 35870313
Change-Id: I13f90693843f7c6fe9fea8e5332aa6dd9558478a

private/perfprofd.te

 userdebug_or_eng(`
+  typeattribute perfprofd coredomain;
   init_daemon_domain(perfprofd)
 ')

private/su.te

 userdebug_or_eng(`
+  typeattribute su coredomain;
+
   domain_auto_trans(shell, su_exec, su)
   # Allow dumpstate to call su on userdebug / eng builds to collect
   # additional information.