Use the notation suggested by Martin Jansa to avoid a bashism. Also
switch KERNEL_DTBVENDORED to the more common 0/1 notation instead of
true/false.
Fixes: 04ab57d200 (kernel-devicetree: allow specification of dtb
directory, 2023-05-02)
(From OE-Core rev: dd5a5abc9d88c3bc8ff2c52b042600f00f054015)
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Randolph Sapp <rs@ti.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>