This is already done in most of selftest; these two were the last
holdouts I could fine.
Hopefully this improves sstate reuse as well.
(From OE-Core rev: 98f2feeea8f54f899e831a13191578b94cde7670)
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>