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

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

Signed-off-by: Tom Rini <trini@konsulko.com>

cmd/setexpr.c

@@ -8,7 +8,6 @@
  * This file provides a shell like 'expr' function to return.
  */
 
-#include <common.h>
 #include <config.h>
 #include <command.h>
 #include <ctype.h>
@@ -16,6 +15,8 @@
 #include <log.h>
 #include <malloc.h>
 #include <mapmem.h>
+#include <vsprintf.h>
+#include <linux/errno.h>
 #include <linux/sizes.h>
 #include "printf.h"