This provides a way to tell the bootwrapper makefile which device tree to
include by default. The wrapper can still be invoked standalone to wrap
with a different device tree without reconfiguring the kernel, if that is
desired.
The user will only be asked to provide a device tree if the platform
selects CONFIG_WANT_DEVICE_TREE.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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