arm64: dts: qcom: sdm845-xiaomi-beryllium: Add placeholders and sort

arm64: dts: qcom: sdm845-xiaomi-beryllium: Add placeholders and sort

We know these devices are present, most of them are supported by
downstream and close to the mainline kernels.

This is very handy when rebasing the integration tree with the support.

No functional changes.

Reviewed-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Robert Eckelmann <longnoserob@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251205-slpi-v3-3-a1320a074345@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>