cm_t335: add cm_t335 board support

Add cm_t335 board directory, config file. Enable build.

Signed-off-by: Ilya Ledvich <ilya@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
[trini: Adapt Makefile]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/boards.cfg b/boards.cfg
index 36f0924..cff9aab 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -244,6 +244,7 @@
 Active  arm         armv7          -           armltd          vexpress            vexpress_ca15_tc2                    -                                                                                                                                 -
 Active  arm         armv7          -           armltd          vexpress            vexpress_ca5x2                       -                                                                                                                                 Matt Waddel <matt.waddel@linaro.org>
 Active  arm         armv7          -           armltd          vexpress            vexpress_ca9x4                       -                                                                                                                                 Matt Waddel <matt.waddel@linaro.org>
+Active  arm         armv7          am33xx      compulab        cm_t335             cm_t335                              cm_t335                                                                                                                           Igor Grinberg <grinberg@compulab.co.il>
 Active  arm         armv7          am33xx      isee            igep0033            am335x_igep0033                      -                                                                                                                                 Enric Balletbo i Serra <eballetbo@iseebcn.com>
 Active  arm         armv7          am33xx      phytec          pcm051              pcm051                               pcm051                                                                                                                            Lars Poeschel <poeschel@lemonage.de>
 Active  arm         armv7          am33xx      siemens         dxr2                dxr2                                 -                                                                                                                                 Roger Meier <r.meier@siemens.com>