package/sngrep: add CPE ID

irontec:sngrep is a valid CPE ID:
https://nvd.nist.gov/products/cpe/detail/558A213D-A36B-4ED8-8671-2C38110F47FD?namingFormat=2.3&orderBy=CPEURI&keyword=sngrep&status=FINAL

Signed-off-by: Daniel Lang <dalang@gmx.at>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 159e469f53a1220249e8df41e287668a3d726678)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/sngrep/sngrep.mk

@@ -9,6 +9,7 @@ SNGREP_SITE = \
 	https://github.com/irontec/sngrep/releases/download/v$(SNGREP_VERSION)
 SNGREP_LICENSE = GPL-3.0+
 SNGREP_LICENSE_FILES = LICENSE
+SNGREP_CPE_ID_VENDOR = irontec
 SNGREP_AUTORECONF = YES
 SNGREP_DEPENDENCIES = libpcap ncurses host-pkgconf