dcdir: Wire up netboot_params_storage.

This is basically an alias for board_storage_nv_scratch.

Change-Id: I0e3ef416a004595097da1cbfb3661db7e3274403
diff --git a/src/drivers/layout/dcdir.c b/src/drivers/layout/dcdir.c
index ef191a6..1526dd4 100644
--- a/src/drivers/layout/dcdir.c
+++ b/src/drivers/layout/dcdir.c
@@ -71,6 +71,11 @@
 PUB_DYN(storage_verified_a, &get_rw_a_verified()->ops)
 PUB_DYN(storage_verified_b, &get_rw_b_verified()->ops)
 
+StorageOps *netboot_params_storage(void)
+{
+	return board_storage_nv_scratch();
+}
+
 
 
 typedef StorageOps *EcStorageCache[CONFIG_MAX_EC_DEV_IDX + 1];