spl: Update spl_load_simple_fit() to take an spl_image param

Upda the SPL FIT code to use the spl_image parameter.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/common/spl/spl.c b/common/spl/spl.c
index fae3dbc..3dafa50 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -204,7 +204,7 @@
 		debug("Found FIT\n");
 		load.bl_len = 1;
 		load.read = spl_ram_load_read;
-		spl_load_simple_fit(&load, 0, header);
+		spl_load_simple_fit(spl_image, &load, 0, header);
 	} else {
 		debug("Legacy image\n");
 		/*