agp: fix shadowed variable warning in amd-k7-agp.c

Introduced between 2.6.25-rc2 and -rc3
drivers/char/agp/amd-k7-agp.c:439:6: warning: symbol 'cap_ptr' shadows an
earlier one
drivers/char/agp/amd-k7-agp.c:414:5: originally declared here

cap_ptr is never used again in this function, don't bother redeclaring.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>

drivers/char/agp/amd-k7-agp.c

@@ -436,8 +436,9 @@ static int __devinit agp_amdk7_probe(struct pci_dev *pdev,
 	   system controller may experience noise due to strong drive strengths
 	 */
 	if (agp_bridge->dev->device == PCI_DEVICE_ID_AMD_FE_GATE_7006) {
-		u8 cap_ptr=0;
 		struct pci_dev *gfxcard=NULL;
+
+		cap_ptr = 0;
 		while (!cap_ptr) {
 			gfxcard = pci_get_class(PCI_CLASS_DISPLAY_VGA<<8, gfxcard);
 			if (!gfxcard) {