package/gdk-pixbuf: add GDK_PIXBUF_CPE_ID_VENDOR

cpe:2.3:a:gnome:gdk-pixbuf is a valid CPE identifier for this package:

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

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

package/gdk-pixbuf/gdk-pixbuf.mk

@@ -10,6 +10,7 @@ GDK_PIXBUF_SOURCE = gdk-pixbuf-$(GDK_PIXBUF_VERSION).tar.xz
 GDK_PIXBUF_SITE = http://ftp.gnome.org/pub/gnome/sources/gdk-pixbuf/$(GDK_PIXBUF_VERSION_MAJOR)
 GDK_PIXBUF_LICENSE = LGPL-2.0+
 GDK_PIXBUF_LICENSE_FILES = COPYING
+GDK_PIXBUF_CPE_ID_VENDOR = gnome
 GDK_PIXBUF_INSTALL_STAGING = YES
 GDK_PIXBUF_DEPENDENCIES = \
 	host-gdk-pixbuf host-libglib2 host-pkgconf \