package/beecrypt: set BEECRYPT_CPE_ID_VALID

cpe:2.3:a:beecrypt_project:beecrypt is a valid CPE identifier for this
package:

  https://nvd.nist.gov/products/cpe/search/results?namingFormat=2.3&keyword=cpe%3A2.3%3Aa%3Abeecrypt_project%3Abeecrypt



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>