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/technologic/ts4800/ts4800.c b/board/technologic/ts4800/ts4800.c
index 94251c6..8fe26a7 100644
--- a/board/technologic/ts4800/ts4800.c
+++ b/board/technologic/ts4800/ts4800.c
@@ -178,7 +178,7 @@
 		ethaddr[i] = (reg_mac[i / 4] >> ((i % 4) * 8)) & 0xFF;
 
 	if (is_valid_ethaddr(ethaddr)) {
-		eth_setenv_enetaddr("ethaddr", ethaddr);
+		eth_env_set_enetaddr("ethaddr", ethaddr);
 		return 0;
 	}