DTC 1.4.4
It turns out that dtc 1.4.3 - and most previous versions - have a
serious build bug on a number of distros: libfdt.h incorrectly defines
some system reserved __* macros for use with sparse.  These conflict
with some system headers on RHEL7 and probably several other Linux
distributions.

This quick fix release includes patches to correct those build
failures.  It also has a tiny handful of other cleanups.

DTC 1.4.3
This release adds code to libfdt to apply dynamic overlays in the
format used by many Linux kernels for ARM.  Apart from that there are
a number of small bugfixes and enhancements.