sconfig: rename pci_domain -> domain

The name pci_domain was a bit misleading, since the construct is only
PCI specific in a particular (northbridge/cpu) implementation, but not
by concept. As implementations and hardware change, be more generic
about our naming. This will allow us to support non-PCI systems without
adding new keywords.

Change-Id: Ide885a1d5e15d37560c79b936a39252150560e85
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2376
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

util/sconfig/sconfig.tab.c_shipped

@@ -133,7 +133,7 @@ static struct device *cur_parent, *cur_bus;
      I2C = 270,
      APIC = 271,
      APIC_CLUSTER = 272,
-     PCI_DOMAIN = 273,
+     DOMAIN = 273,
      IRQ = 274,
      DRQ = 275,
      IO = 276,
@@ -478,7 +478,7 @@ static const char *const yytname[] =
 {
   "$end", "error", "$undefined", "CHIP", "DEVICE", "REGISTER", "BOOL",
   "BUS", "RESOURCE", "END", "EQUALS", "HEX", "STRING", "PCI", "PNP", "I2C",
-  "APIC", "APIC_CLUSTER", "PCI_DOMAIN", "IRQ", "DRQ", "IO", "NUMBER",
+  "APIC", "APIC_CLUSTER", "DOMAIN", "IRQ", "DRQ", "IO", "NUMBER",
   "SUBSYSTEMID", "INHERIT", "IOAPIC_IRQ", "IOAPIC", "PCIINT", "$accept",
   "devtree", "$@1", "chipchildren", "devicechildren", "chip", "@2",
   "device", "@3", "resource", "registers", "subsystemid", "ioapic_irq", 0