transport: mbox: Rename *init_mbox_dev to *transport_mbox_init

Change-Id: I212277ed2462089b905546ef048308d24a5489d0
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/mboxd.c b/mboxd.c
index 31dcefa..ecf0caf 100644
--- a/mboxd.c
+++ b/mboxd.c
@@ -358,7 +358,7 @@
 		goto finish;
 	}
 
-	rc = init_mbox_dev(context);
+	rc = transport_mbox_init(context);
 	if (rc) {
 		goto finish;
 	}