common: Drop init.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/board_info.c b/common/board_info.c
index a392bec..a6db087 100644
--- a/common/board_info.c
+++ b/common/board_info.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 
 #include <common.h>
+#include <init.h>
 #include <linux/libfdt.h>
 #include <linux/compiler.h>