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/xes/xpedite550x/xpedite550x.c b/board/xes/xpedite550x/xpedite550x.c
index 378e5b6..6ee70d6 100644
--- a/board/xes/xpedite550x/xpedite550x.c
+++ b/board/xes/xpedite550x/xpedite550x.c
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <init.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>