Description:
------------
MTR option 'only-big-test' doesn't skip a non big-test if it sources
'include/no_valgrind_without_big.inc' file.

MTR should skip these tests if only 'only-big-test' option is enabled
since it is not a big-test.

Change-Id: I219174c3c3c0d1c065bfed756196c5628619a9a7