package/exiv2: add EXIV2_CPE_ID_VENDOR

cpe:2.3:a:exiv2:exiv2 is a valid CPE identifier for this package:

  https://nvd.nist.gov/products/cpe/search/results?namingFormat=2.3&keyword=cpe%3A2.3%3Aa%3Aexiv2%3Aexiv2

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

package/exiv2/exiv2.mk

@@ -9,6 +9,7 @@ EXIV2_SITE = $(call github,Exiv2,exiv2,v$(EXIV2_VERSION))
 EXIV2_INSTALL_STAGING = YES
 EXIV2_LICENSE = GPL-2.0+
 EXIV2_LICENSE_FILES = COPYING
+EXIV2_CPE_ID_VENDOR = exiv2
 
 EXIV2_CONF_OPTS += -DEXIV2_BUILD_SAMPLES=OFF