[openwrt/openwrt] COPYING: add COPYING file to specify project licenses

[LEDE Commits]

adrian pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/36bb1196d16eada7dff05540dbeb74ed9f54e600

commit 36bb1196d16eada7dff05540dbeb74ed9f54e600
Author: Adrian Schmutzler <freifunk at adrianschmutzler.de>
AuthorDate: Fri Feb 12 13:52:03 2021 +0100

    COPYING: add COPYING file to specify project licenses
    
    Since multiple licenses are provided now in the LICENSES folder,
    add a COPYING file to specify the project license.
    
    Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>
    Acked-by: Paul Spooren <mail at aparcar.org>
---
 COPYING | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000000..ea8112482a
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,12 @@
+OpenWrt is provided under:
+
+	SPDX-License-Identifier: GPL-2.0-only
+
+Being under the terms of the GNU General Public License version 2 only,
+according with:
+
+	LICENSES/GPL-2.0
+
+In addition, other licenses may also apply.
+
+All contributions to OpenWrt are subject to this COPYING file.