ARM: at91: change board files into SoC files

As board files are now DT only and can address all aspects of the SoC family,
we can rename them so that the mach-at91 directory looks cleaner.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/Makefile

@@ -7,14 +7,9 @@ obj-y		:= setup.o
 obj-$(CONFIG_SOC_AT91SAM9)	+= sam9_smc.o
 
 # CPU-specific support
-obj-$(CONFIG_SOC_AT91RM9200)	+= at91rm9200_time.o
+obj-$(CONFIG_SOC_AT91RM9200)	+= at91rm9200.o at91rm9200_time.o
-
+obj-$(CONFIG_SOC_AT91SAM9)	+= at91sam9.o
-# AT91SAM board with device-tree
+obj-$(CONFIG_SOC_SAMA5)		+= sama5.o
-obj-$(CONFIG_SOC_AT91RM9200) += board-dt-rm9200.o
-obj-$(CONFIG_SOC_AT91SAM9) += board-dt-sam9.o
-
-# SAMA5 board with device-tree
-obj-$(CONFIG_SOC_SAMA5)		+= board-dt-sama5.o
 
 # Power Management
 obj-$(CONFIG_PM)		+= pm.o

arch/arm/mach-at91/at91rm9200.c

@@ -1,5 +1,5 @@
 /*
- *  Setup code for AT91RM9200 Evaluation Kits with Device Tree support
+ *  Setup code for AT91RM9200
  *
  *  Copyright (C) 2011 Atmel,
  *                2011 Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/at91sam9.c

@@ -1,5 +1,5 @@
 /*
- *  Setup code for AT91SAM Evaluation Kits with Device Tree support
+ *  Setup code for AT91SAM9
  *
  *  Copyright (C) 2011 Atmel,
  *                2011 Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/sama5.c

@@ -1,5 +1,5 @@
 /*
- *  Setup code for SAMA5 Evaluation Kits with Device Tree support
+ *  Setup code for SAMA5
  *
  *  Copyright (C) 2013 Atmel,
  *                2013 Ludovic Desroches <ludovic.desroches@atmel.com>