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/board/atmel/sam9x60ek/MAINTAINERS b/board/atmel/sam9x60ek/MAINTAINERS
new file mode 100644
index 0000000..e8c1346
--- /dev/null
+++ b/board/atmel/sam9x60ek/MAINTAINERS
@@ -0,0 +1,7 @@
+SAM9X60EK BOARD
+M:	Sandeep Sheriker M <sandeep.sheriker@microchip.com>
+M:	Eugen Hristev <eugen.hristev@microchip.com>
+S:	Maintained
+F:	board/atmel/sam9x60ek/
+F:	include/configs/sam9x60ek.h
+F:	configs/sam9x60ek_mmc_defconfig