lpc: Rename free_lpc_dev to lpc_dev_free

Change-Id: I515ca2aad13d43698c3f4c9fed270d719b92f0f6
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/mboxd.c b/mboxd.c
index 9265b6d..541e117 100644
--- a/mboxd.c
+++ b/mboxd.c
@@ -405,7 +405,7 @@
 
 	dbus_free(context);
 	flash_dev_free(context);
-	free_lpc_dev(context);
+	lpc_dev_free(context);
 	free_mbox_dev(context);
 	free_windows(context);
 #ifdef VIRTUAL_PNOR_ENABLED