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/net/eth_internal.h b/net/eth_internal.h
index a14b208..4b0e716 100644
--- a/net/eth_internal.h
+++ b/net/eth_internal.h
@@ -13,7 +13,7 @@
 void eth_common_init(void);
 
 /**
- * eth_setenv_enetaddr_by_index() - set the MAC address environment variable
+ * eth_env_set_enetaddr_by_index() - set the MAC address environment variable
  *
  * This sets up an environment variable with the given MAC address (@enetaddr).
  * The environment variable to be set is defined by <@base_name><@index>addr.
@@ -25,7 +25,7 @@
  * @enetaddr:	Pointer to MAC address to put into the variable
  * @return 0 if OK, other value on error
  */
-int eth_setenv_enetaddr_by_index(const char *base_name, int index,
+int eth_env_set_enetaddr_by_index(const char *base_name, int index,
 				 uchar *enetaddr);
 
 int eth_mac_skip(int index);