[AGPGART] Makefile cleanups.

- the makefile is not the right place to describe the driver
- remove some junk

drivers/char/agp/Makefile

-#
-# Makefile for the agpgart device driver.  This driver adds a user
-# space ioctl interface to use agp memory.  It also adds a kernel interface
-# that other drivers could use to manipulate agp memory.
-
 agpgart-y := backend.o frontend.o generic.o generic-3.0.o
-agpgart-objs := $(agpgart-y)
-obj-$(CONFIG_AGP) += agpgart.o
 
-obj-$(CONFIG_AGP_INTEL)		+= intel-agp.o
-obj-$(CONFIG_AGP_VIA)		+= via-agp.o
-obj-$(CONFIG_AGP_AMD)		+= amd-k7-agp.o
-obj-$(CONFIG_AGP_SIS)		+= sis-agp.o
+obj-$(CONFIG_AGP)		+= agpgart.o
 obj-$(CONFIG_AGP_ALI)		+= ali-agp.o
-obj-$(CONFIG_AGP_SWORKS)	+= sworks-agp.o
-obj-$(CONFIG_AGP_I460)		+= i460-agp.o
-obj-$(CONFIG_AGP_HP_ZX1)	+= hp-agp.o
+obj-$(CONFIG_AGP_AMD)		+= amd-k7-agp.o
 obj-$(CONFIG_AGP_AMD_8151)	+= amd-k8-agp.o
 obj-$(CONFIG_AGP_ALPHA_CORE)	+= alpha-agp.o
+obj-$(CONFIG_AGP_HP_ZX1)	+= hp-agp.o
+obj-$(CONFIG_AGP_I460)		+= i460-agp.o
+obj-$(CONFIG_AGP_INTEL)		+= intel-agp.o
 obj-$(CONFIG_AGP_NVIDIA)	+= nvidia=agp.o
+obj-$(CONFIG_AGP_SIS)		+= sis-agp.o
+obj-$(CONFIG_AGP_SWORKS)	+= sworks-agp.o
+obj-$(CONFIG_AGP_VIA)		+= via-agp.o