board/radxa/rock5b: do not let the kernel mount the rootfs as rw
Do not let the kernel mount the rootfs as rw.
There is no need for this, and init will remount the rootfs as rw anyway.
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>