The SPDX license identifier provides a standardized way for specifying
licenses that is both human- and machine-readable. It is used upstream
both in OpenWrt and the Linux kernel.
Replace licenses in our repository by those identifiers.
The full-text licenses corresponding to these identifiers are
provided in the LICENSES folder.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Fabian Bläse <fabian@blaese.de>