poky/poky-tiny: Explicitly exclude `shadow`
`login` from busybox has explicit heuristics to handle CONFIG_MULTIUSER
unset (i.e. a kernel without non-root users, groups or capabilities),
bringing in the shadow version of `login` causes obscure failures at
runtime ("setgid: Function not implemented"), instead exclude it here so
anyone who includes it (likely accidentally) will at least get a build
time failure.
(From meta-yocto rev: be22c2923a0cdf60ab60012668382e55a3618f2b)
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Alex Kiernan