This makes it easier to replace data connectivity testing to use
something else than local hwsim_test binary on the controller device.
Signed-off-by: Jouni Malinen <j@w1.fi>
Only run-tests.py is actually executed, so there is no need to specify
the interpreter in all the helper files and test script files.
Signed-off-by: Jouni Malinen <j@w1.fi>
