arm64: dts: qcom: sdm845-db845c: Add msm-id and board-id

Add qcom,msm-id and qcom,board-id for Dragonboard 845c.
This will help us boot the device with newer Android boot
image header versions, which package dtb separately
instead of the default Image.gz-dtb (appended dtb) format.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210930185742.117928-1-amit.pundir@linaro.org