ARM: rmobile: Only register ethernet on V2H Blanche if not DM_ETH

If the DM_ETH is enabled, the board-specific ethernet registeration
should be disabled, make it so.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/blanche/blanche.c b/board/renesas/blanche/blanche.c
index 471d80f..c153873 100644
--- a/board/renesas/blanche/blanche.c
+++ b/board/renesas/blanche/blanche.c
@@ -314,6 +314,7 @@
 }
 
 /* Added for BLANCHE(R-CarV2H board) */
+#ifndef CONFIG_DM_ETH
 int board_eth_init(bd_t *bis)
 {
 	int rc = 0;
@@ -338,6 +339,7 @@
 
 	return rc;
 }
+#endif
 
 int dram_init(void)
 {