dt-bindings: soc: qcom,aoss-qmp: Document the Kaanapali AOSS channel

dt-bindings: soc: qcom,aoss-qmp: Document the Kaanapali AOSS channel

Document the Always-On Subsystem side channel on the Qualcomm Kaanapali
platform for communication with client found on the SoC such as
remoteprocs.

Reviewed-by: Eugen Hristev <eugen.hristev@linaro.org>
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20251022-knp-soc-binding-v2-2-3cd3f390f3e2@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>