On > 4 GiB eMMC devices, barebox writes a 32-bit address and a 64-bit
size into the partition reg property, because #address-cells is
accidentally written as '#addres-cells'. This causes a fallback to
32-bit address size. Fix the typo and thereby of_partition_fixup for
64-bit partitions.

Fixes: a2fa18f9f483 ("mtd: of: Make used partition binding configurable")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>