ARM: support board-specific ethernet PHY init

Add until the new phylib will be arrived

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/lib_arm/board.c b/lib_arm/board.c
index 6f35aa0..7e7a282 100644
--- a/lib_arm/board.c
+++ b/lib_arm/board.c
@@ -430,6 +430,10 @@
 	puts ("Net:   ");
 #endif
 	eth_initialize(gd->bd);
+#if defined(CONFIG_RESET_PHY_R)
+	debug ("Reset Ethernet PHY\n");
+	reset_phy();
+#endif
 #endif
 	/* main_loop() can return to retry autoboot, if so just run it again. */
 	for (;;) {