Merge patch series "Remove as much arch/arm/dts/*.h as possible"

Tom Rini <trini@konsulko.com> says:

Taking inspiration from Heiko's patch[1] this series goes and cleans up
all of the arch/arm/dts/*.h files that can be easily removed. The big
challenge I ran in to here was that for some platforms that aren't using
OF_UPSTREAM were didn't have a sufficiently deep search path to find
files there rather than arch/arm/dts. This also showed that only ARM had
local header files to deal with.

[1]: https://lore.kernel.org/u-boot/20250528090536.765499-1-heiko.thiery@gmail.com/

Link: https://lore.kernel.org/r/20250528233050.3820722-1-trini@konsulko.com

diff --cc scripts/Makefile.lib
Simple merge