PCI: Add support for AGP in cur/max bus speed

Take advantage of some gaps in the table to fit in support for AGP speeds.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index 6f6b8d2..c7260d4 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -61,11 +61,11 @@
 	"66 MHz PCI-X 266",	/* 0x09 */
 	"100 MHz PCI-X 266",	/* 0x0a */
 	"133 MHz PCI-X 266",	/* 0x0b */
-	NULL,			/* 0x0c */
-	NULL,			/* 0x0d */
-	NULL,			/* 0x0e */
-	NULL,			/* 0x0f */
-	NULL,			/* 0x10 */
+	"Unknown AGP",		/* 0x0c */
+	"1x AGP",		/* 0x0d */
+	"2x AGP",		/* 0x0e */
+	"4x AGP",		/* 0x0f */
+	"8x AGP",		/* 0x10 */
 	"66 MHz PCI-X 533",	/* 0x11 */
 	"100 MHz PCI-X 533",	/* 0x12 */
 	"133 MHz PCI-X 533",	/* 0x13 */