ARM: dts: cm-t335: add support for SBC-T335

Add basic support for the SBC-T335.

CompuLab SBC-T335 is a single baseboard computer.
The SBC-T335 is based on the Texas Instruments Cortex-A8 Sitara AM3354
SoC.

Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>