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/gdsys/mpc8308/mpc8308.c b/board/gdsys/mpc8308/mpc8308.c
index ae77fc2..d410845 100644
--- a/board/gdsys/mpc8308/mpc8308.c
+++ b/board/gdsys/mpc8308/mpc8308.c
@@ -6,6 +6,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <init.h>
 #include <asm/processor.h>
 #include <asm/io.h>
 #include <asm/global_data.h>