package/mongoose: add MONGOOSE_CPE_ID_VENDOR

cpe:2.3:a:cesanta:mongoose is a valid CPE identifier for this package:

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mongoose/mongoose.mk

@@ -8,6 +8,7 @@ MONGOOSE_VERSION = 7.1
 MONGOOSE_SITE = $(call github,cesanta,mongoose,$(MONGOOSE_VERSION))
 MONGOOSE_LICENSE = GPL-2.0
 MONGOOSE_LICENSE_FILES = LICENSE
+MONGOOSE_CPE_ID_VENDOR = cesenta
 MONGOOSE_INSTALL_STAGING = YES
 # static library
 MONGOOSE_INSTALL_TARGET = NO