Avoid ../../.. paths in ASL files

The current directory is always part of the search path of cpp when
using #include "..."

Change-Id: I74fe39e0c79835e4b9a927afcbeab21040d8ae52
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/648
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/northbridge/intel/i945/acpi/i945.asl b/src/northbridge/intel/i945/acpi/i945.asl
index f5f4aae..47a6931 100644
--- a/src/northbridge/intel/i945/acpi/i945.asl
+++ b/src/northbridge/intel/i945/acpi/i945.asl
@@ -19,8 +19,8 @@
  * MA 02110-1301 USA
  */
 
-#include "../../../northbridge/intel/i945/acpi/hostbridge.asl"
-#include "../../../northbridge/intel/i945/i945.h"
+#include "hostbridge.asl"
+#include "../i945.h"
 
 /* PCI Device Resource Consumption */
 Device (PDRC)
@@ -77,10 +77,10 @@
 }
 
 // PCIe graphics port 0:1.0
-#include "../../../northbridge/intel/i945/acpi/peg.asl"
+#include "peg.asl"
 
 // Integrated graphics 0:2.0
-#include "../../../northbridge/intel/i945/acpi/igd.asl"
+#include "igd.asl"
 
 Scope (\)
 {