Update LIC_FILES_CHKSUM as the new COPYING added "Copyright years" and added
a new section of MIT-style license.
(From OE-Core rev: 72a68e7b5a015b0d8083c722367f674ed98315a2)
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>