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/blob.c

@@ -4,9 +4,9 @@
  * Command for encapsulating/decapsulating blob of memory.
  */
 
-#include <common.h>
 #include <command.h>
 #include <malloc.h>
+#include <vsprintf.h>
 #include <asm/byteorder.h>
 #include <linux/compiler.h>
 #if defined(CONFIG_ARCH_MX6) || defined(CONFIG_ARCH_MX7) || \