qa: perform burnin with max/min mem from config

Signed-off-by: Guido Trotter <ultrotter@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

qa/qa_cluster.py

@@ -430,6 +430,8 @@ def TestClusterBurnin():
       # Run burnin
       cmd = [script,
              "--os=%s" % qa_config.get("os"),
+             "--minmem-size=%s" % qa_config.get(constants.BE_MINMEM),
+             "--maxmem-size=%s" % qa_config.get(constants.BE_MAXMEM),
              "--disk-size=%s" % ",".join(qa_config.get("disk")),
              "--disk-growth=%s" % ",".join(qa_config.get("disk-growth")),
              "--disk-template=%s" % disk_template]