x86: tpl: Show next stage being booted

Enhance the debugging to show the next stage being booted as well as a
dump of the start of the image.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/lib/tpl.c b/arch/x86/lib/tpl.c
index 04ff322..c84a0c9 100644
--- a/arch/x86/lib/tpl.c
+++ b/arch/x86/lib/tpl.c
@@ -111,7 +111,12 @@
 
 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
 {
-	debug("Jumping to U-Boot SPL at %lx\n", (ulong)spl_image->entry_point);
+	debug("Jumping to %s at %lx\n", spl_phase_name(spl_next_phase()),
+	      (ulong)spl_image->entry_point);
+#ifdef DEBUG
+	print_buffer(spl_image->entry_point, (void *)spl_image->entry_point, 1,
+		     0x20, 0);
+#endif
 	jump_to_spl(spl_image->entry_point);
 	hang();
 }