ARM: dts: Add minimal support for LogicPD OMAP35xx Torpedo devkit

With the common baseboard info moved into its own file and the
common torpedo already in its own file, we can very easily
create a new devkit specific for the OMAP35xx.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>