package/cmake: add _CPE_ID_VENDOR

cpe:2.3:a:cmake_project:cmake:* is a valid CPE identifier for this package:

 https://nvd.nist.gov/products/cpe/search/results?namingFormat=2.3&keyword=cpe:2.3:a:cmake_project:cmake

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/cmake/cmake.mk

@@ -9,6 +9,7 @@ CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).5
 CMAKE_SITE = https://cmake.org/files/v$(CMAKE_VERSION_MAJOR)
 CMAKE_LICENSE = BSD-3-Clause
 CMAKE_LICENSE_FILES = Copyright.txt
+CMAKE_CPE_ID_VENDOR = cmake_project
 
 # CMake is a particular package:
 # * CMake can be built using the generic infrastructure or the cmake one.