[POWERPC] mpc82xx: Rename mpc82xx_ads to mpc8272_ads.

This is just a rename patch; internal references to mpc82xx_ads will be
changed in the next one.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/platforms/82xx/Kconfig

 choice
 	prompt "82xx Board Type"
 	depends on PPC_82xx
-	default MPC82xx_ADS
+	default MPC8272_ADS
 
-config MPC82xx_ADS
-	bool "Freescale MPC82xx ADS"
+config MPC8272_ADS
+	bool "Freescale MPC8272 ADS"
 	select DEFAULT_UIMAGE
 	select PQ2ADS
 	select 8272

arch/powerpc/platforms/82xx/Makefile

 #
 # Makefile for the PowerPC 82xx linux kernel.
 #
-obj-$(CONFIG_MPC82xx_ADS) += mpc82xx_ads.o
+obj-$(CONFIG_MPC8272_ADS) += mpc8272_ads.o