configs/rock5b: remove unneeded uboot tools param
While switching from a custom to mainline kernel in commit
b7dbdd3d775b8e94664c6f37b11afc8a6a352e35, the uboot tools became
unneeded and were removed from the rock5b_defconfig. However, the FIT
support configuration parameter was accidentally left inside the
defconfig. This patch removes it.
Signed-off-by: Kilian Zinnecker <kilian.zinnecker@mail.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>