lib/oeqa/runtime: cleanup and improve output readability for some tests
- move everything in the same test. setUp/tearDown aren't quite
the right thing here, everything it's part of the same test. (and
it get's confusing when ssh fails)
ldd:
- change test name and add output to error message
vnc:
- remove unnecessary check as there is no point in doing
both ps and netstat. Also improve error output a bit.
Signed-off-by: Stefan Stanacar <stefanx.stanacar@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>