spl: Update ext functions to take an spl_image parameter

Update the ext loader to avoid using the spl_image global variable.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/mtd/spi/sunxi_spi_spl.c b/drivers/mtd/spi/sunxi_spi_spl.c
index 70d6d15..67c7edd 100644
--- a/drivers/mtd/spi/sunxi_spi_spl.c
+++ b/drivers/mtd/spi/sunxi_spi_spl.c
@@ -262,7 +262,8 @@
 
 /*****************************************************************************/
 
-static int spl_spi_load_image(struct spl_boot_device *bootdev)
+static int spl_spi_load_image(struct spl_image_info *spl_image,
+			      struct spl_boot_device *bootdev)
 {
 	int err;
 	struct image_header *header;
@@ -271,12 +272,12 @@
 	spi0_init();
 
 	spi0_read_data((void *)header, CONFIG_SYS_SPI_U_BOOT_OFFS, 0x40);
-	err = spl_parse_image_header(&spl_image, header);
+	err = spl_parse_image_header(spl_image, header);
 	if (err)
 		return err;
 
-	spi0_read_data((void *)spl_image.load_addr, CONFIG_SYS_SPI_U_BOOT_OFFS,
-		       spl_image.size);
+	spi0_read_data((void *)spl_image->load_addr, CONFIG_SYS_SPI_U_BOOT_OFFS,
+		       spl_image->size);
 
 	spi0_deinit();
 	return 0;