package/dbus-broker: add DBUS_BROKER_CPE_ID_VENDOR

cpe:2.3:a:dbus-broker_project:dbus-broker is a valid CPE identifier for
this package:

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

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

package/dbus-broker/dbus-broker.mk

@@ -23,6 +23,7 @@ DBUS_BROKER_LICENSE_FILES = \
 	subprojects/c-stdaux/AUTHORS subprojects/c-stdaux/README.md \
 	subprojects/c-utf8/AUTHORS subprojects/c-utf8/README.md
 
+DBUS_BROKER_CPE_ID_VENDOR = dbus-broker_project
 DBUS_BROKER_DEPENDENCIES = expat systemd
 DBUS_BROKER_CONF_OPTS = -Dlauncher=true