UBOOT_CONFIG accepts a third parameter for the UBOOT_BINARY that isn't
documented. To show its usage another example from the meta-freescale layer
was picked.
(From yocto-docs rev: f315078495003bdaff111a70908d7a698b2065eb)
Signed-off-by: Jörg Sommer <joerg.sommer@navimatix.de>
Reviewed-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>