the --big-test flag is supplied. Test is too resource intensive
under normal valgrind runs (takes more than 30min on powerful
hardware).

mysql-test/include/no_valgrind_without_big.inc:
  Add MTR prerequisite file by Matthias Leich.
mysql-test/suite/funcs_1/t/myisam_views.test:
  Test is too resource intensive under "Valgrind".