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/logicpd/omap3som/omap3logic.c b/board/logicpd/omap3som/omap3logic.c
index 2f93248..21d8a21 100644
--- a/board/logicpd/omap3som/omap3logic.c
+++ b/board/logicpd/omap3som/omap3logic.c
@@ -12,6 +12,7 @@
  */
 #include <common.h>
 #include <dm.h>
+#include <init.h>
 #include <ns16550.h>
 #include <netdev.h>
 #include <flash.h>