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/isee/igep003x/board.c b/board/isee/igep003x/board.c
index 24687e2..1aa2f52 100644
--- a/board/isee/igep003x/board.c
+++ b/board/isee/igep003x/board.c
@@ -275,7 +275,7 @@
 		mac_addr[4] = mac_lo & 0xFF;
 		mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 		if (is_valid_ethaddr(mac_addr))
-			eth_setenv_enetaddr("ethaddr", mac_addr);
+			eth_env_set_enetaddr("ethaddr", mac_addr);
 	}
 
 	writel((GMII1_SEL_RMII | RMII1_IO_CLK_EN),