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

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

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

test/fuzz/cmd_fuzz.c

@@ -5,7 +5,6 @@
  */
 
 #include <command.h>
-#include <common.h>
 #include <dm.h>
 #include <fuzzing_engine.h>
 #include <test/fuzz.h>

test/fuzz/virtio.c

@@ -4,7 +4,6 @@
  * Written by Andrew Scull <ascull@google.com>
  */
 
-#include <common.h>
 #include <dm.h>
 #include <virtio.h>
 #include <virtio_ring.h>