add boiler plate intel nic code

src/SConscript:
    add intel nic to sconscript
src/dev/pcidev.cc:
    fix bug with subsystemid value
src/python/m5/objects/Ethernet.py:
    add intel nic to ethernet.py
src/python/m5/objects/Ide.py:
src/python/m5/objects/Pci.py:
    Move config_latency into pci where it belogs

--HG--
extra : convert_revision : 7163aaf7b4098496518b0910cef62f2ce3dd574d

src/python/m5/objects/Ide.py

@@ -37,6 +37,4 @@ class IdeController(PciDevice):
     type = 'IdeController'
     disks = VectorParam.IdeDisk("IDE disks attached to this controller")
 
-    config_latency = Param.Latency('20ns', "Config read or write latency")
-
     configdata =IdeControllerPciData()