fdt: fix bcm283x dm-pre-reloc definitions

In commmit
143256b353 ("fdt: update bcm283x device tree sources to Linux 5.1-rc6 state")
we deleted the label for the node soc from bcm283x.dtsi

As we don't need to add the property dm-pre-reloc to the soc node,
we can delete it from bcm283x-uboot.dtsi

Tested-by: Tom Rini <trini@konsulko.com> [RPi 3, 32b and 64b modes]
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
1 file changed