package/libhtp: add LIBHTP_CPE_ID_VENDOR

cpe:2.3:a:oisf:libhtp is a valid CPE identifier for this package:

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/libhtp/libhtp.mk

@@ -8,6 +8,7 @@ LIBHTP_VERSION = 0.5.39
 LIBHTP_SITE = $(call github,OISF,libhtp,$(LIBHTP_VERSION))
 LIBHTP_LICENSE = BSD-3-Clause
 LIBHTP_LICENSE_FILES = LICENSE
+LIBHTP_CPE_ID_VENDOR = oisf
 LIBHTP_DEPENDENCIES = \
 	$(if $(BR2_PACKAGE_LIBICONV),libiconv) \
 	zlib