net: ti: cpsw: Enable DM_FLAG_PRE_RELOC

Add DM_FLAG_PRE_RELOC to make the driver probe in SPL.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
diff --git a/drivers/net/ti/cpsw.c b/drivers/net/ti/cpsw.c
index 403c9b9..e16c270 100644
--- a/drivers/net/ti/cpsw.c
+++ b/drivers/net/ti/cpsw.c
@@ -1379,6 +1379,6 @@
 	.probe	= cpsw_eth_probe,
 	.ops	= &cpsw_eth_ops,
 	.priv_auto_alloc_size = sizeof(struct cpsw_priv),
-	.flags = DM_FLAG_ALLOC_PRIV_DMA,
+	.flags = DM_FLAG_ALLOC_PRIV_DMA | DM_FLAG_PRE_RELOC,
 };
 #endif /* CONFIG_DM_ETH */