This avoids some silent parser hangs we were seeing which were
near impossible to debug as no user feedback was given.
[RP: Tweak commit message]
(Bitbake rev: d104f29871c04a5a36600a35b2568b49e5b21ca0)
Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>