arm64: dts: qcom: sdm845-oneplus-*: add msm-id and board-id

The msm-id and board-id can be used to select the correct dtb when
multiple are provided to the bootloader.

Multiple DTBs can be provided on sdm845 devices using boot image header
v1 by appending them all to the kernel image before creating the boot
image. The bootloader then selects them like this:

Best match DTB tags 321/00000008/0x00000000/20001/20014/20115/20018/0/(offset)0x79998E27/(size)0x000173CD
Using pmic info 0x20014/0x20115/0x20018/0x0 for device 0x20014/0x20115/0x20018/0x0

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211209225938.2427342-1-caleb.connolly@linaro.org