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/board/amlogic/odroid-c2/odroid-c2.c b/board/amlogic/odroid-c2/odroid-c2.c
index f2a394a..ca9c13b 100644
--- a/board/amlogic/odroid-c2/odroid-c2.c
+++ b/board/amlogic/odroid-c2/odroid-c2.c
@@ -48,7 +48,7 @@
 		len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
 					  mac_addr, EFUSE_MAC_SIZE);
 		if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
-			eth_setenv_enetaddr("ethaddr", mac_addr);
+			eth_env_set_enetaddr("ethaddr", mac_addr);
 	}
 
 	if (!getenv("serial#")) {