mb/*/*: Harmonise FD and devicetree on boards featuring ICH7

On some boards the devicetree and Function Disable register did not
match. In this case the FD values are put in the devicetree as these
were the values that were actually used in practice.

A complete devicetree will make it easier to automatically disable
devices in ramstage.

Change-Id: I1692ca5f490ea84e2fc520d3f66044ad7514f76e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/27122
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/mainboard/asus/p5gc-mx/devicetree.cb b/src/mainboard/asus/p5gc-mx/devicetree.cb
index cefa711..642f1ee 100644
--- a/src/mainboard/asus/p5gc-mx/devicetree.cb
+++ b/src/mainboard/asus/p5gc-mx/devicetree.cb
@@ -62,10 +62,10 @@
 			end
 			device pci 1c.0 on end # PCIe
 			device pci 1c.1 on end # PCIe
-			#device pci 1c.2 off end # PCIe port 3
-			#device pci 1c.3 off end # PCIe port 4
-			#device pci 1c.4 off end # PCIe port 5
-			#device pci 1c.5 off end # PCIe port 6
+			device pci 1c.2 off end # PCIe port 3
+			device pci 1c.3 off end # PCIe port 4
+			device pci 1c.4 off end # PCIe port 5
+			device pci 1c.5 off end # PCIe port 6
 			device pci 1d.0 on # USB UHCI
 				ioapic_irq 2 INTA 0x10
 			end
@@ -82,6 +82,8 @@
 				ioapic_irq 2 INTA 0x10
 			end
 			device pci 1e.0 on end # PCI bridge
+			device pci 1e.2 off end # AC'97 Audio
+			device pci 1e.3 off end # AC'97 Modem
 
 			device pci 1f.0 on # LPC bridge
 				ioapic_irq 2 INTA 0x10