ARM: dts: qcom: add msm-id for sdxprairie

Add msm-id for automotive variant of sdxprairie in
device tree. Bootloader will match this value to the
value obtained from hardware to identify best matching
device tree for the given board.

Change-Id: I1a044174755a329891cc528076a3f8bfedea45ab
Signed-off-by: Rishi Gupta <rishgupt@codeaurora.org>