arm: dts: socfpga*.dts*: use SPDX-License-Identifier

Follow the recent trend for the license description.

This is also in an effort to fully sync the devicetrees with U-Boot.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
This commit is contained in:
Simon Goldschmidt 2018-11-05 21:27:27 +01:00 • committed by Dinh Nguyen
commit e793b284d7
18 changed files with 28 additions and 269 deletions