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

Remove <common.h> from all sh architecture files and when needed add
missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/sh/lib/zimageboot.c b/arch/sh/lib/zimageboot.c
index c2e285f..e731c6a 100644
--- a/arch/sh/lib/zimageboot.c
+++ b/arch/sh/lib/zimageboot.c
@@ -9,10 +9,10 @@
  * Linux SuperH zImage loading and boot
  */
 
-#include <common.h>
 #include <command.h>
 #include <env.h>
 #include <irq_func.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 #include <asm/zimage.h>