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/alpha_sys.h b/hw/alpha_sys.h
index 7604d09..b1e5258 100644
--- a/hw/alpha_sys.h
+++ b/hw/alpha_sys.h
@@ -3,8 +3,8 @@
 #ifndef HW_ALPHA_H
 #define HW_ALPHA_H 1
 
-#include "pci.h"
-#include "pci_host.h"
+#include "pci/pci.h"
+#include "pci/pci_host.h"
 #include "ide.h"
 #include "net.h"
 #include "pc.h"