package/mariadb: set MARIADB_CPE_ID_VENDOR

cpe:2.3:a:mariadb:mariadb is a valid CPE identifier for this package:

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mariadb/mariadb.mk

@@ -10,6 +10,7 @@ MARIADB_LICENSE = GPL-2.0 (server), GPL-2.0 with FLOSS exception (GPL client lib
 # Tarball no longer contains LGPL license text
 # https://jira.mariadb.org/browse/MDEV-12297
 MARIADB_LICENSE_FILES = README.md COPYING
+MARIADB_CPE_ID_VENDOR = mariadb
 MARIADB_INSTALL_STAGING = YES
 MARIADB_PROVIDES = mysql