[AGPGART] Lots of CodingStyle/whitespace cleanups.

Eliminate trailing whitespace.
s/if(/if (/
s/for(/for (/

Signed-off-by: Dave Jones <davej@redhat.com>
diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index 80ee17a..509adc4 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -228,7 +228,7 @@
 struct agp_bridge_data *agp_alloc_bridge(void)
 {
 	struct agp_bridge_data *bridge;
-	
+
 	bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
 	if (!bridge)
 		return NULL;