ARM: dts: add Qualcomm APQ8060-based Dragonboard

This is the first Dragonboard based on APQ8060 and PM8058. It
was produced in 2011 in cooperation between Qualcomm and
BSQUARE.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>