Change apt_mk_version => mcp_version

   * Alligh all variables to one
   * Due mcp_version: ${_param:apt_mk_version}
     those change still bw compatible

Bug-relateted: PROD-24789 (PROD:24789)
Change-Id: I30b6fb0b1cb66c7d56dbb3a5e15c8bc9606405b5
diff --git a/jenkins/client/job/validate.yml b/jenkins/client/job/validate.yml
index a73b8ad..3003ebb 100644
--- a/jenkins/client/job/validate.yml
+++ b/jenkins/client/job/validate.yml
@@ -203,7 +203,7 @@
               description: Enable if you need to keep container after the test and debug
             IMAGE:
               type: string
-              default: "${_param:mcp_docker_registry}/mirantis/cvp/cvp-sanity-checks:${_param:apt_mk_version}"
+              default: "${_param:mcp_docker_registry}/mirantis/cvp/cvp-sanity-checks:${_param:mcp_version}"
               description: Docker image with tests and all pip dependecies to use for testing
             SALT_MASTER_URL:
               type: string
@@ -473,7 +473,7 @@
               description: Enable if you need to keep container after the test and debug
             IMAGE:
               type: string
-              default: "${_param:mcp_docker_registry}/mirantis/cvp/cvp-spt:${_param:apt_mk_version}"
+              default: "${_param:mcp_docker_registry}/mirantis/cvp/cvp-spt:${_param:mcp_version}"
               description: Docker image with tests and all pip dependecies to use for testing
             SALT_MASTER_URL:
               type: string