board: atmel: Add sam9x60ek board

Add new board SAM9X60-EK using the ARM926 SAM9X60 SoC.

Signed-off-by: Sandeep Sheriker Mallikarjun <sandeepsheriker.mallikarjun@microchip.com>
[tudor.ambarus@microchip.com:
- fix number of DRAM banks:
  One DDR2-SDRAM (W972GG6KB 2 Gbit = 16 Mbit x 16 x 8 banks]
- drop SPL related macros
- drop memtest macros
- drop CONFIG_SPI_BOOT, CONFIG_SYS_USE_DATAFLASH related macros
- drop inclusion of asm/arch/at91sam9_smc.h]
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 3cf1304..8552400 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -160,6 +160,12 @@
 	select BOARD_LATE_INIT
 	select SUPPORT_SPL
 
+config TARGET_SAM9X60EK
+	bool "SAM9X60-EK board"
+	select SAM9X60
+	select BOARD_EARLY_INIT_F
+	select BOARD_LATE_INIT
+
 config TARGET_SAMA5D2_PTC_EK
 	bool "SAMA5D2 PTC EK board"
 	select BOARD_EARLY_INIT_F
@@ -316,6 +322,7 @@
 source "board/atmel/at91sam9n12ek/Kconfig"
 source "board/atmel/at91sam9rlek/Kconfig"
 source "board/atmel/at91sam9x5ek/Kconfig"
+source "board/atmel/sam9x60ek/Kconfig"
 source "board/atmel/sama5d2_ptc_ek/Kconfig"
 source "board/atmel/sama5d2_xplained/Kconfig"
 source "board/atmel/sama5d27_som1_ek/Kconfig"