env: Rename eth_setenv_enetaddr() to eth_env_set_enetaddr()

Rename this function for consistency with env_set().

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/net/ne2000_base.c b/drivers/net/ne2000_base.c
index 377d87f..f6e5eaf 100644
--- a/drivers/net/ne2000_base.c
+++ b/drivers/net/ne2000_base.c
@@ -723,7 +723,7 @@
 		 * returns -1 due to eth_getenv_enetaddr_by_index() failing,
 		 * and this causes "Warning: failed to set MAC address", and
 		 * cmd_bdinfo has no ethaddr value which it can show: */
-		eth_setenv_enetaddr("ethaddr", dev->enetaddr);
+		eth_env_set_enetaddr("ethaddr", dev->enetaddr);
 	}
 	return 0;
 }