[AGPGART] warning fixes from Bjorn's last patches.

drivers/char/agp/agp.h

@@ -48,6 +48,8 @@ int agp_generic_suspend(void);
 void agp_generic_resume(void);
 void agp_free_key(int key);
 int agp_num_entries(void);
+u32 agp_collect_device_status(u32 mode, u32 command);
+void agp_device_command(u32 command, int agp_v3);
 
 #define PFX "agpgart: "
 

drivers/char/agp/sworks-agp.c

@@ -229,7 +229,6 @@ static int serverworks_configure(void)
 	struct aper_size_info_lvl2 *current_size;
 	u32 temp;
 	u8 enable_reg;
-	u32 cap_id;
 	u16 cap_reg;
 
 	current_size = A_SIZE_LVL2(agp_bridge.current_size);