env: Drop env_relocate_spec() in favour of env_load()

This is a strange name for a function that loads the environment. There is
now only one implementation of this function, so use the new env_load()
function directly instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index 0a16529..ac0592b 100644
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -249,7 +249,7 @@
 
 #ifdef CONFIG_SPL_ENV_SUPPORT
 	env_init();
-	env_relocate_spec();
+	env_load();
 	if (getenv_yesno("boot_os") != 1)
 		return 1;
 #endif