bootstage: call show_boot_progress also in SPL

show_boot_progress() is now called from SPL also.

Signed-off-by: Heiko Schocher <hs@denx.de>

common/spl/spl.c

@@ -35,6 +35,11 @@ struct spl_image_info spl_image;
 /* Define board data structure */
 static bd_t bdata __attribute__ ((section(".data")));
 
+/*
+ * Board-specific Platform code can reimplement show_boot_progress () if needed
+ */
+__weak void show_boot_progress(int val) {}
+
 /*
  * Default function to determine if u-boot or the OS should
  * be started. This implementation always returns 1.