[AGPGART] fix compile errors

This fixes the following compile failures of agpgart drivers.
These errors were inserted by the recent AGPGART constification patch.

drivers/char/agp/uninorth-agp.c:492: error: expected '{' before 'const'
drivers/char/agp/uninorth-agp.c:517: error: expected '{' before 'const'
drivers/char/agp/uninorth-agp.c: In function 'agp_uninorth_probe':
drivers/char/agp/uninorth-agp.c:634: error: 'u3_agp_driver' undeclared (first use in this function)
drivers/char/agp/uninorth-agp.c:634: error: (Each undeclared identifier is reported only once
drivers/char/agp/uninorth-agp.c:634: error: for each function it appears in.)
drivers/char/agp/uninorth-agp.c:636: error: 'uninorth_agp_driver' undeclared (first use in this function)

Signed-off-by: Ryusuke Konishi <[email protected]>
Signed-off-by: Dave Jones <[email protected]>
diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c
index 292b4ad..91b0621 100644
--- a/drivers/char/agp/uninorth-agp.c
+++ b/drivers/char/agp/uninorth-agp.c
@@ -489,7 +489,7 @@
 	{4, 1024, 0, 1}
 };
 
-struct const agp_bridge_driver uninorth_agp_driver = {
+const struct agp_bridge_driver uninorth_agp_driver = {
 	.owner			= THIS_MODULE,
 	.aperture_sizes		= (void *)uninorth_sizes,
 	.size_type		= U32_APER_SIZE,
@@ -514,7 +514,7 @@
 	.cant_use_aperture	= 1,
 };
 
-struct const agp_bridge_driver u3_agp_driver = {
+const struct agp_bridge_driver u3_agp_driver = {
 	.owner			= THIS_MODULE,
 	.aperture_sizes		= (void *)u3_sizes,
 	.size_type		= U32_APER_SIZE,