Adjust dependencies to match what is optional and what is not.
(From OE-Core rev: 42a42fe0ded83ffc6268f4db972f5c9e549f62a1)
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>