package/docker-cli: add CPE variables

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

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

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/docker-cli/docker-cli.mk

@@ -12,6 +12,9 @@ DOCKER_CLI_LICENSE_FILES = LICENSE
 
 DOCKER_CLI_DEPENDENCIES = host-pkgconf
 
+DOCKER_CLI_CPE_ID_VENDOR = docker
+DOCKER_CLI_CPE_ID_PRODUCT = docker
+
 DOCKER_CLI_TAGS = autogen
 DOCKER_CLI_BUILD_TARGETS = cmd/docker
 DOCKER_CLI_GOMOD = github.com/docker/cli