ARM: dts: qcom: apq8060-dragonboard: Add TMA340 to APQ8060 DragonBoard

This adds the CY8CTMA340 Touchscreen to the APQ8060 DragonBoard.

Tested without display by issuing cat /dev/input/input/event3
which produces appropriate noise and interrupts on the dedicated
GPIO line.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220913132846.305716-3-linus.walleij@linaro.org