Revert "Switch all platforms artifacts to use the new build system"

This reverts commit 95c7ecd562029d7ff23ec303ba281234831a0d57.
diff --git a/jenkins/build-config.jpl b/jenkins/build-config.jpl
index 579aa93..fccfad6 100644
--- a/jenkins/build-config.jpl
+++ b/jenkins/build-config.jpl
@@ -98,6 +98,7 @@
       sh "tf-m-ci-scripts/run-build.sh"
     }
     stage("Post") {
+      archiveArtifacts 'trusted-firmware-m/build/install/**'
       archiveArtifacts 'trusted-firmware-m/build/bin/**'
     }
   } catch (Exception e) {