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

Remove <common.h> from all "commmon/" files and when needed add
missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/common/init/handoff.c b/common/init/handoff.c
index d0be1bb..687513b 100644
--- a/common/init/handoff.c
+++ b/common/init/handoff.c
@@ -5,9 +5,9 @@
  * Copyright 2018 Google, Inc
  */
 
-#include <common.h>
 #include <handoff.h>
 #include <asm/global_data.h>
+#include <asm/u-boot.h>
 
 DECLARE_GLOBAL_DATA_PTR;