command: Include a required header in command.h

This uses ARRAY_SIZE() but does not include the header file which declares
it. Fix this, so that command.h can be included without common.h

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

boot/bootm.c

@@ -8,6 +8,7 @@
 #include <common.h>
 #include <bootstage.h>
 #include <cli.h>
+#include <command.h>
 #include <cpu_func.h>
 #include <env.h>
 #include <errno.h>
@@ -29,7 +30,6 @@
 #include "mkimage.h"
 #endif
 
-#include <command.h>
 #include <bootm.h>
 #include <image.h>
 

include/command.h

@@ -25,6 +25,10 @@
 #endif
 
 #ifndef	__ASSEMBLY__
+
+/* For ARRAY_SIZE() */
+#include <linux/kernel.h>
+
 /*
  * Monitor Command Table
  */