Fix typo in Kconfig description.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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Normally U-Boot uses a flat device tree which saves space and
avoids the need to unpack the tree before use. However a flat
- tree does not support modifcation from within U-Boot since it
+ tree does not support modification from within U-Boot since it
can invalidate driver-model device tree offsets. This option
enables a live tree which is available after relocation,
and can be adjusted as needed.