util-linux: Example of pkg level INCOMPATIBLE_LICENSE

util-linux: Example of pkg level INCOMPATIBLE_LICENSE

util-linux-lscpu provides an example of pkg level incompatible
license. In this instance, we've set the license for this specific
package as GPLv3. The other packages inherit the recipe LICENSE.

What this allows is the package to not be included on install to
the image.

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