Memory footprint: Change change_id to git commit hash

Signed-off-by: Jianliang Shen <jianliang.shen@arm.com>
Change-Id: I27b223c76afb7278916c55530746468ff149ead9
diff --git a/jenkins/build-config.jpl b/jenkins/build-config.jpl
index 8af6227..d714897 100644
--- a/jenkins/build-config.jpl
+++ b/jenkins/build-config.jpl
@@ -49,7 +49,7 @@
           if (fileExists('tf-m-ci-scripts/Memory_footprint/filesize.json')) {
             println("--- output from memory_footprint.py ---")
             println(output)
-            println("--- end of output from lava_wait_jobs.py ---")
+            println("--- end of output from memory_footprint.py ---")
             archiveArtifacts 'tf-m-ci-scripts/Memory_footprint/filesize.json'
           }
         }