Refactor keystorage and arond.

   * Move key's to soft-param
   * Using link-structure, aka ${linux:XXX:key}
     broke some formulas logic

Closes-Bug: PROD-23577 (PROD:23577)

Change-Id: I81dc528372ec73ac7650f921fc5df76a8ee2027a
diff --git a/linux/system/repo/mcp/apt_mirantis/jenkins.yml b/linux/system/repo/mcp/apt_mirantis/jenkins.yml
index 0c256b6..59f03e8 100644
--- a/linux/system/repo/mcp/apt_mirantis/jenkins.yml
+++ b/linux/system/repo/mcp/apt_mirantis/jenkins.yml
@@ -11,6 +11,7 @@
         mcp_jenkins:
           # FIXME PROD-20733
           source: "deb [arch=amd64 trusted=yes] ${_param:linux_system_repo_mcp_jenkins_url}/${_param:linux_system_codename}/ binary main"
+          key: ${_param:linux_system_repo_mcp_jenkins_key}
           architectures: amd64
           clean_file: true
           pin: