spl: fit: Fix entry point for SPL_LOAD_FIT_FULL

The entry point is not always the same as the load address. Use the value
of the entry property if it exists.

Fixes: 8a9dc16e4d0 ("spl: Add full fitImage support")
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
index 1409b92..32316d8 100644
--- a/common/spl/spl_fit.c
+++ b/common/spl/spl_fit.c
@@ -901,8 +901,9 @@
 		return ret;
 
 	spl_image->size = fw_len;
-	spl_image->entry_point = fw_data;
 	spl_image->load_addr = fw_data;
+	if (fit_image_get_entry(header, ret, &spl_image->entry_point))
+		spl_image->entry_point = fw_data;
 	if (fit_image_get_os(header, ret, &spl_image->os))
 		spl_image->os = IH_OS_INVALID;
 	spl_image->name = genimg_get_os_name(spl_image->os);