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/timll/devkit8000/devkit8000.c b/board/timll/devkit8000/devkit8000.c
index d31eeb8..2f80d15 100644
--- a/board/timll/devkit8000/devkit8000.c
+++ b/board/timll/devkit8000/devkit8000.c
@@ -111,7 +111,7 @@
 		enetaddr[3] = (die_id_0 & 0x00ff0000) >> 16;
 		enetaddr[4] = (die_id_0 & 0x0000ff00) >> 8;
 		enetaddr[5] = (die_id_0 & 0x000000ff);
-		eth_setenv_enetaddr("ethaddr", enetaddr);
+		eth_env_set_enetaddr("ethaddr", enetaddr);
 	}
 #endif