package/exfat: add EXFAT_CPE_ID_VENDOR

cpe:2.3:a:exfat_project:exfat is a valid CPE identifier for this
package:

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 7bd6ed208c234d0a0a065ce13e0fe9a5f438e9ba)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/exfat/exfat.mk

@@ -10,6 +10,7 @@ EXFAT_SOURCE = fuse-exfat-$(EXFAT_VERSION).tar.gz
 EXFAT_DEPENDENCIES = libfuse host-pkgconf
 EXFAT_LICENSE = GPL-2.0+
 EXFAT_LICENSE_FILES = COPYING
+EXFAT_CPE_ID_VENDOR = exfat_project
 EXFAT_CFLAGS = $(TARGET_CFLAGS) -std=c99
 
 EXFAT_CONF_OPTS += --exec-prefix=/