southbridge/intel/lynxpoint: use common Intel ACPI hardware definitions

Transition to using the common Intel ACPI hardware definitions
generic ACPI definitions.

BUG=chrome-os-partner:54977

Change-Id: I03051c1c1df3e64abeedd6370a440111ade59742
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15676
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/southbridge/intel/lynxpoint/usb_xhci.c b/src/southbridge/intel/lynxpoint/usb_xhci.c
index eaa260a..0acf35f 100644
--- a/src/southbridge/intel/lynxpoint/usb_xhci.c
+++ b/src/southbridge/intel/lynxpoint/usb_xhci.c
@@ -162,7 +162,7 @@
 	u32 reg32;
 	u8 *mem_base = usb_xhci_mem_base(dev);
 
-	if (!mem_base || slp_typ < 3)
+	if (!mem_base || slp_typ < ACPI_S3)
 		return;
 
 	if (pch_is_lp()) {