board: atmel: add SAMA5D2 PTC Engineering board

The board supports following features:
 - Boot media support: NAND Flash/SPI Flash
 - Support ethernet
 - Support USB mass storage

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 9ce775e..73a9c74 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -71,6 +71,11 @@
 	select CPU_ARM926EJS
 	select SUPPORT_SPL
 
+config TARGET_SAMA5D2_PTC
+	bool "SAMA5D2 PTC board"
+	select CPU_V7
+	select SUPPORT_SPL
+
 config TARGET_SAMA5D2_XPLAINED
 	bool "SAMA5D2 Xplained board"
 	select CPU_V7
@@ -138,6 +143,7 @@
 source "board/atmel/at91sam9n12ek/Kconfig"
 source "board/atmel/at91sam9rlek/Kconfig"
 source "board/atmel/at91sam9x5ek/Kconfig"
+source "board/atmel/sama5d2_ptc/Kconfig"
 source "board/atmel/sama5d2_xplained/Kconfig"
 source "board/atmel/sama5d3_xplained/Kconfig"
 source "board/atmel/sama5d3xek/Kconfig"