stress-ng: add a recipe that replaces the original stress
The original stress is no longer maintained and the homepage
went down. This commit replaces it with a maintained
re-implementation by Ubuntu.
Stress-ng preserves command line option compatibility
(for the options that are used in rt-tests), so adjustment
is simply changing the name of the executable. Rt-tests is the only
user of stress(-ng) in oe-core.
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>