common: Move some board functions out of common.h

A number of board function belong in init.h with the others. Move them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/vscom/baltos/board.c b/board/vscom/baltos/board.c
index 588f6db..02ea1c0 100644
--- a/board/vscom/baltos/board.c
+++ b/board/vscom/baltos/board.c
@@ -10,6 +10,7 @@
 #include <common.h>
 #include <env.h>
 #include <errno.h>
+#include <init.h>
 #include <serial.h>
 #include <linux/libfdt.h>
 #include <spl.h>