imx6: aristainetos: add support for rev C board

add support for revision C boards. This board has
no longer a NAND.

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/board/aristainetos/Kconfig b/board/aristainetos/Kconfig
index 9eb3c3b..2ad3dbd 100644
--- a/board/aristainetos/Kconfig
+++ b/board/aristainetos/Kconfig
@@ -33,3 +33,15 @@
 	default 4
 
 endif
+
+if TARGET_ARISTAINETOS2C
+
+source "board/aristainetos/common/Kconfig"
+
+config SYS_BOARD
+	default "aristainetos"
+
+config SYS_BOARD_VERSION
+	default 5
+
+endif