"empty-root-passwd" doesn't actually set an empty root password.
It just doesn't touch the initial root password which is empty by default.
(From yocto-docs rev: 793cfe841148ead7e22fc2caf045247ab27a15da)
Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>