board: raspberrypi: Remove <common.h> and add needed includes

Remove <common.h> from this board vendor directory and when needed
add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index 2851ebc..d996eb0 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -3,7 +3,6 @@
  * (C) Copyright 2012-2016 Stephen Warren
  */
 
-#include <common.h>
 #include <config.h>
 #include <dm.h>
 #include <env.h>