license: move One Laptop per Child in RELICENSE.md
With reference to https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/blob/dd9156d55f530b0112920f732cb14fe9a1a06090/RELICENSE.md#which-code
One Laptop per Child has a Copyright (C) 2009 on two files licensed as GPL-2.0+; src/devices/wifi/nm-device-olpc-mesh.c and src/devices/wifi/nm-device-olpc-mesh.h
One Laptop per Child agrees to relicensing these files and any other GPL-2.0+ code in Network Manager as LGPL-2.1+
Signed-off-by: James Cameron quozl@laptop.org