It probably makes sense to just skip building these tests when
we are cross compiling.
Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>