ACPICA: hide private headers

Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c
index 8e73fbf..4d33891 100644
--- a/drivers/acpi/acpica/pstree.c
+++ b/drivers/acpi/acpica/pstree.c
@@ -42,9 +42,9 @@
  */
 
 #include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
 
 #define _COMPONENT          ACPI_PARSER
 ACPI_MODULE_NAME("pstree")