This makes it easy to override them in bbappends
(From OE-Core rev: af4766e9fe17c7adb0c69f2d9b97b716813beca2)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 99458d1fa170970e8a1aa04eeb0c86d3754fd988)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>