* Merge the two tests together as having them separate is pointless
* Test that ldd runs correctly
* Add in a dependency on the "ldd" package being installed instead of
the sdk tools feature
(From OE-Core rev: 80db456387fb63ee74d53a9719ab3997432f4c80)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>