License-Update: readme no longer carries a copyright notice, so take it from a source file
(From OE-Core rev: 30fa7e5edb91512a0f5c00db6259f1dcaea4fb2d)
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>