hw: include hw header files with full paths

Done with this script:

cd hw
for i in `find . -name '*.h' | sed 's/^..//'`; do
  echo '\,^#.*include.*["<]'$i'[">], s,'$i',hw/&,'
done | sed -i -f - `find . -type f`

This is so that paths remain valid as files are moved.

Instead, files in hw/dataplane are referenced with the relative path.
We know they are not going to move to include/, and they are the only
include files that are in subdirectories _and_ move.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/xen_platform.c b/hw/xen_platform.c
index 8866468..5e11c95 100644
--- a/hw/xen_platform.c
+++ b/hw/xen_platform.c
@@ -25,12 +25,12 @@
 
 #include <assert.h>
 
-#include "hw.h"
-#include "pc.h"
-#include "pci/pci.h"
-#include "irq.h"
-#include "xen_common.h"
-#include "xen_backend.h"
+#include "hw/hw.h"
+#include "hw/pc.h"
+#include "hw/pci/pci.h"
+#include "hw/irq.h"
+#include "hw/xen_common.h"
+#include "hw/xen_backend.h"
 #include "trace.h"
 #include "exec/address-spaces.h"