dtc: Use stdint.h types throughout dtc

[Jon Loeliger]

> Currently, dtc defines Linux-like names for various fixed-size integer
> types.  There's no good reason to do this; even Linux itself doesn't
> use these names for externally visible things any more.  This patch
> replaces these with the C99 standardized type names from stdint.h.
> 
> Signed-off-by: David Gibson <david at gibson.dropbear.id.au>

Applied.

jdl