package/libuv: add LIBUV_CPE_ID_VENDOR

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

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

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 442b21f8cbda99576e9e77475bfdcbdc64283dff)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libuv/libuv.mk

@@ -13,6 +13,7 @@ LIBUV_INSTALL_STAGING = YES
 LIBUV_AUTORECONF = YES
 LIBUV_LICENSE = BSD-2-Clause, BSD-3-Clause, ISC, MIT
 LIBUV_LICENSE_FILES = LICENSE
+LIBUV_CPE_ID_VENDOR = libuv
 
 # Upstream needs tests to be run sequentially. This is the default in
 # automake 1.11 and before, but not starting in 1.12. To maintain