spl: fit: Drop 'length' argument to board_spl_fit_post_load()

The size is derived from the FIT image itself. Any alignment
requirements are machine-specific and known by the board code. Thus
the total length can be derived from the FIT image and knowledge of
the platform. The 'length' argument is redundant. Remove it.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
CC: Matt Porter <mporter@konsulko.com>
diff --git a/include/spl.h b/include/spl.h
index e172500..0d13458 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -701,9 +701,9 @@
 
 /**
  * board_spl_fit_post_load - allow process images after loading finished
- *
+ * @fit: Pointer to a valid Flattened Image Tree blob
  */
-void board_spl_fit_post_load(ulong load_addr, size_t length);
+void board_spl_fit_post_load(const void *fit);
 
 /**
  * board_spl_fit_size_align - specific size align before processing payload