spl: pass args to board_return_to_bootrom

Pass spl_image and bootdev to board_return_bootrom.
i.MX8MN needs the args to let ROM to load images

Cc: Simon Glass <sjg@chromium.org>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/cpu/arm926ejs/spear/spl.c b/arch/arm/cpu/arm926ejs/spear/spl.c
index fc332fb..a919a45 100644
--- a/arch/arm/cpu/arm926ejs/spear/spl.c
+++ b/arch/arm/cpu/arm926ejs/spear/spl.c
@@ -277,7 +277,8 @@
  * BootROM code right after having initialized a few components like the DRAM).
  * The following function is called from SPL common code (board_init_r).
  */
-void board_return_to_bootrom(void)
+int board_return_to_bootrom(struct spl_image_info *spl_image,
+			    struct spl_boot_device *bootdev)
 {
 	/*
 	 * Retrieve the BootROM's stack pointer and jump back to the start of
@@ -294,4 +295,6 @@
 		      "bl back_to_bootrom;"
 #endif
 		      );
+
+	return 0;
 }