package/util-linux/util-linux-libs: add CPE variables

cpe:2.3:a:kernel:util-linux is a valid CPE identifier for this package:

  https://nvd.nist.gov/products/cpe/search/results?namingFormat=2.3&keyword=cpe%3A2.3%3Aa%3Akernel%3Autil-linux



Inherit the values from util-linux; they really are, and have to be,
the same.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[yann.morin.1998@free.fr: inherit values from util-linux]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>