1.6.20 -> 1.6.21
License file updates contain new dates and versions. Update checksums
to reflect it.
(From OE-Core rev: 55fb8957fd8f9d2c34674514e652d79b2229bc3c)
Signed-off-by: Maxin B. John <maxin.john@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>