The pysh we're using is modified, and we don't want to risk it conflicting
with one from elsewhere.
(Bitbake rev: 1cbf8a9403b4b60d59bfd90a51c3e4246ab834d6)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>