gm45: Convert to per-device ACPI

Change-Id: Ib04b03b2dc2ad3bfa886b43df9dd6518bbb46e3f
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6803
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
diff --git a/src/northbridge/intel/gm45/gm45.h b/src/northbridge/intel/gm45/gm45.h
index d93b6e4..673160b 100644
--- a/src/northbridge/intel/gm45/gm45.h
+++ b/src/northbridge/intel/gm45/gm45.h
@@ -429,6 +429,9 @@
 u32 decode_igd_gtt_size(u32 gsm);
 
 void init_iommu(void);
+
+struct acpi_rsdp;
+unsigned long northbridge_write_acpi_tables(unsigned long start, struct acpi_rsdp *rsdp);
 #endif
 
 #endif