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/armflash.c

@@ -5,10 +5,10 @@
  *
  * Support for ARM Flash Partitions
  */
-#include <common.h>
 #include <command.h>
 #include <console.h>
 #include <flash.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 
 #define MAX_REGIONS 4