- Add few VIA bridges to agp_via.c and connect it to amd64 build

as they support Intel Core/Core 2 and VIA Nano processors.
- Align "optional agp" in conf/files.* for consistency while I am here.

sys/conf/files.amd64

@@ -135,6 +135,7 @@ dev/acpica/acpi_if.m		standard
 dev/agp/agp_amd64.c		optional	agp
 dev/agp/agp_i810.c		optional	agp
 dev/agp/agp_intel.c		optional	agp
+dev/agp/agp_via.c		optional	agp
 dev/arcmsr/arcmsr.c		optional	arcmsr pci
 dev/asmc/asmc.c			optional	asmc isa
 dev/atkbdc/atkbd.c		optional	atkbd atkbdc

sys/dev/agp/agp_via.c

@@ -85,8 +85,14 @@ agp_via_match(device_t dev)
 		return ("VIA 3296 (P4M800) host to PCI bridge");
 	case 0x03051106:
 		return ("VIA 82C8363 (Apollo KT133x/KM133) host to PCI bridge");
+	case 0x03141106:
+		return ("VIA 3314 (P4M800CE) host to PCI bridge");
 	case 0x03241106:
 		return ("VIA VT3324 (CX700) host to PCI bridge");
+	case 0x03271106:
+		return ("VIA 3327 (P4M890) host to PCI bridge");
+	case 0x03641106:
+		return ("VIA 3364 (P4M900) host to PCI bridge");
 	case 0x03911106:
 		return ("VIA 8371 (Apollo KX133) host to PCI bridge");
 	case 0x05011106:
@@ -168,7 +174,10 @@ agp_via_attach(device_t dev)
 	case 0x02591106:
 	case 0x02691106:
 	case 0x02961106:
+	case 0x03141106:
 	case 0x03241106:
+	case 0x03271106:
+	case 0x03641106:
 	case 0x31231106:
 	case 0x31681106:
 	case 0x31891106:

sys/modules/agp/Makefile

@@ -12,7 +12,7 @@ SRCS+=	agp_i810.c agp_intel.c agp_via.c agp_sis.c agp_ali.c agp_amd.c \
 SRCS+=	agp_amd64.c
 .endif
 .if  ${MACHINE_ARCH} == "amd64"
-SRCS+=	agp_amd64.c agp_i810.c
+SRCS+=	agp_amd64.c agp_i810.c agp_via.c
 .endif
 SRCS+=	device_if.h bus_if.h agp_if.h pci_if.h
 SRCS+=	opt_bus.h