lib/testutil/integration: extend timeout for waiting for subcommands.

Change-Id: I969bbf546510646102189991da75d8e0017871e8
diff --git a/lib/testutil/integration/util.go b/lib/testutil/integration/util.go
index fcc8571..3412043 100644
--- a/lib/testutil/integration/util.go
+++ b/lib/testutil/integration/util.go
@@ -455,7 +455,7 @@
 	if err != nil {
 		t.Fatalf("NewShell() failed: %v", err)
 	}
-
+	shell.SetWaitTimeout(5 * time.Minute)
 	t.Log("starting root mounttable...")
 	mtHandle, mtEndpoint, err := startRootMT(shell)
 	if err != nil {