ACPICA: hide private headers

Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c
index 71b83e9..200895f 100644
--- a/drivers/acpi/acpica/nswalk.c
+++ b/drivers/acpi/acpica/nswalk.c
@@ -42,8 +42,8 @@
  */
 
 #include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
+#include "accommon.h"
+#include "acnamesp.h"
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nswalk")