spl: spl_legacy: Fix NAND boot on OMAP3 BeagleBoard

OMAP3 BeagleBoard NAND boot hangs when spl_load_legacy_img() tries
to read the header into 'struct hdr' which is allocated on the
stack.

As the header has already been read once before by spl_nand.c,
we can avoid the extra header allocation and read here by
simply passing around the pointer to the header.

This fixes NAND boot on OMAP3 BeagleBoard.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-By: Michael Trimarchi <michael@amarulasolutions.com>
diff --git a/include/spl.h b/include/spl.h
index 0fc3686..303a657 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -353,7 +353,8 @@
  * spl_load_legacy_img() - Loads a legacy image from a device.
  * @spl_image:	Image description to set up
  * @load:	Structure containing the information required to load data.
- * @header:	Pointer to image header (including appended image)
+ * @offset:	Pointer to image
+ * @hdr:	Pointer to image header
  *
  * Reads an legacy image from the device. Loads u-boot image to
  * specified load address.
@@ -361,7 +362,9 @@
  */
 int spl_load_legacy_img(struct spl_image_info *spl_image,
 			struct spl_boot_device *bootdev,
-			struct spl_load_info *load, ulong header);
+			struct spl_load_info *load, ulong offset,
+			struct legacy_img_hdr *hdr);
+
 
 /**
  * spl_load_imx_container() - Loads a imx container image from a device.