SPL: FIT: Align loading address for header

If bl_len is not aligned it can caused a problem because another code
expects that start is aligned.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

common/spl/spl_fit.c

@@ -123,6 +123,7 @@ int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fit)
 	 * be before CONFIG_SYS_TEXT_BASE.
 	 */
 	fit = (void *)(CONFIG_SYS_TEXT_BASE - size - info->bl_len);
+	fit = (void *)ALIGN((ulong)fit, 8);
 	sectors = (size + info->bl_len - 1) / info->bl_len;
 	count = info->read(info, sector, sectors, fit);
 	debug("fit read sector %lx, sectors=%d, dst=%p, count=%lu\n",