Break up vl.h.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/usb-linux.c b/usb-linux.c
index 00864f0..d6a2b8b 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -21,7 +21,9 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "vl.h"
+#include "qemu-common.h"
+#include "hw/usb.h"
+#include "console.h"
 
 #if defined(__linux__)
 #include <dirent.h>