Re: libfdt: libfdt_env.h must be included first

So, like, the other day David Gibson mumbled:

libfdt.h currently includes fdt.h, then libfdt_env.h.  This is
incorrect, because depending on the environment into which libfdt is
embedded, libfdt_env.h may be needed to define datatypes used in
fdt.h.  This patch corrects the problem.

Signed-off-by: David Gibson <redacted>
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I've sent this one before, but I guess it got lost in the backlog.

Sorry.  There was some froohah around it and I didn't track
where it landed.

Applied.

jdl