[AGPGART] Fix wrong ID in via-agp.c

there is a wrong id in drivers/char/agp/via-agp.c
#define PCI_DEVICE_ID_VIA_CX700         0x8324
It must be 0x0324

Notice that PCI_DEVICE_ID_VIA_CX700 is also used in
drivers/i2c/busses/i2c-viapro.c and
drivers/ide/pci/via82cxxx.c

So, I think that constant must be renamed to avoid conflicting.
I attached a proposed patch.

Signed-off-by: Dave Jones <davej@redhat.com>
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index ccd85e4..3b1fbf4 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1288,6 +1288,7 @@
 #define PCI_DEVICE_ID_VIA_8363_0	0x0305
 #define PCI_DEVICE_ID_VIA_P4M800CE	0x0314
 #define PCI_DEVICE_ID_VIA_P4M890	0x0327
+#define PCI_DEVICE_ID_VIA_VT3324	0x0324
 #define PCI_DEVICE_ID_VIA_VT3336	0x0336
 #define PCI_DEVICE_ID_VIA_8371_0	0x0391
 #define PCI_DEVICE_ID_VIA_8501_0	0x0501