package/sslh: add SSLH_CPE_ID_VENDOR

cpe:2.3:a:sslh_project:sslh is a valid CPE identifier for this package:

  https://nvd.nist.gov/products/cpe/detail/3E1DF528-5507-4919-A3EC-4283949BE06F

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 5fcd2ef29d2f6e782b9bd5928e2e835daf627ae8)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/sslh/sslh.mk

@@ -9,6 +9,7 @@ SSLH_SOURCE = sslh-v$(SSLH_VERSION).tar.gz
 SSLH_SITE = http://www.rutschle.net/tech/sslh
 SSLH_LICENSE = GPL-2.0+
 SSLH_LICENSE_FILES = COPYING
+SSLH_CPE_ID_VENDOR = sslh_project
 SSLH_DEPENDENCIES = pcre2
 
 SSLH_MAKE_OPTS = $(TARGET_CONFIGURE_OPTS) CFLAGS="$(TARGET_CFLAGS) -std=gnu99"