package/jack2: add JACK2_CPE_ID_VENDOR

cpe:2.3:a:jackaudio:jack2 is a valid CPE identifier for this package:

  https://nvd.nist.gov/products/cpe/search/results?namingFormat=2.3&keyword=cpe%3A2.3%3Aa%3Ajackaudio%3Ajack2

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/jack2/jack2.mk

@@ -8,6 +8,7 @@ JACK2_VERSION = 1.9.17
 JACK2_SITE = $(call github,jackaudio,jack2,v$(JACK2_VERSION))
 JACK2_LICENSE = GPL-2.0+ (jack server), LGPL-2.1+ (jack library)
 JACK2_LICENSE_FILES = COPYING
+JACK2_CPE_ID_VENDOR = jackaudio
 JACK2_DEPENDENCIES = libsamplerate libsndfile alsa-lib
 JACK2_INSTALL_STAGING = YES