env: Rename eth_getenv_enetaddr() to eth_env_get_enetaddr()

Rename this function for consistency with env_get().

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/net/fsl_mcdmafec.c b/drivers/net/fsl_mcdmafec.c
index 628b420..26c714c 100644
--- a/drivers/net/fsl_mcdmafec.c
+++ b/drivers/net/fsl_mcdmafec.c
@@ -383,9 +383,9 @@
 
 	/* Set station address   */
 	if ((u32) fecp == CONFIG_SYS_FEC0_IOBASE)
-		eth_getenv_enetaddr("ethaddr", enetaddr);
+		eth_env_get_enetaddr("ethaddr", enetaddr);
 	else
-		eth_getenv_enetaddr("eth1addr", enetaddr);
+		eth_env_get_enetaddr("eth1addr", enetaddr);
 	fec_set_hwaddr(fecp, enetaddr);
 
 	/* Set Opcode/Pause Duration Register */