[PARISC] parisc-agp: Fix thinko const-ifying

Can't really blame davej for mucking this up... static-ify
it while we're at it, which would have prevented this...

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index 3c8f3d6..3d83b46 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -210,7 +210,7 @@
 	agp_device_command(command, (mode & AGP8X_MODE) != 0);
 }
 
-struct const agp_bridge_driver parisc_agp_driver = {
+static const struct agp_bridge_driver parisc_agp_driver = {
 	.owner			= THIS_MODULE,
 	.size_type		= FIXED_APER_SIZE,
 	.configure		= parisc_agp_configure,