ARM: dts: qcom: Add initial DTS file for Fairphone 2 phone

This DTS has support for the Fairphone 2 (codenamed FP2).
This first version of the DTS supports just the serial console via the
MSM UART pins.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>