cm-t54: add cm-t54 board support

Add cm-t54 board directory, config file. Enable build.

Basic support includes:

Serial console
SD/MMC
eMMC
USB
Ethernet

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
diff --git a/board/compulab/cm_t54/Makefile b/board/compulab/cm_t54/Makefile
new file mode 100644
index 0000000..298ddd2
--- /dev/null
+++ b/board/compulab/cm_t54/Makefile
@@ -0,0 +1,10 @@
+#
+# Copyright (C) 2014 Compulab Ltd - http://compulab.co.il/
+#
+# Author: Dmitry Lifshitz <lifshitz@compulab.co.il>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += cm_t54.o
+obj-$(CONFIG_SPL_BUILD) += mux.o spl.o