pci: update all users to look in pci/

update all users so we can remove the makefile hack.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/hw/versatile_pci.c b/hw/versatile_pci.c
index e0c3ee3..7a543b4 100644
--- a/hw/versatile_pci.c
+++ b/hw/versatile_pci.c
@@ -8,8 +8,8 @@
  */
 
 #include "sysbus.h"
-#include "pci.h"
-#include "pci_host.h"
+#include "pci/pci.h"
+#include "pci/pci_host.h"
 #include "exec-memory.h"
 
 typedef struct {