arm64: dts: qcom: qcs615: Add Command DB support

Command DB is a database in the shared memory of QCOM SoCs, that
provides a mapping between resource key and the resource address for a
system resource managed by a remote processor. The data is stored in a
shared memory region and is loaded by the remote processor. Therefore,
enabling Command DB ensures that those resources function properly.

Signed-off-by: Lijuan Gao <quic_lijuang@quicinc.com>
Link: https://lore.kernel.org/r/20250221-add_command_db_support-v1-1-d60acbf913aa@quicinc.com


Signed-off-by: Bjorn Andersson <andersson@kernel.org>