bzip2 and busybox: Incorrect LICENSE

bzip2 and busybox: Incorrect LICENSE

The license for bzip2 is not quite BSD. I have an email out to the
maintainer to see if we can utilize a common BSD license (or something
else) however, for now, we should revert bzip2 back to a special
license.

As busybox also utilizes a lightly modified bzip2, this also
effects busybox.

(From OE-Core rev: a0b132798d2c1adf79414787b8317327a554f852)

Signed-off-by: Elizabeth Flanagan <elizabeth.flanagan@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>