dt-bindings: mailbox: qcom: Add IPCC support for Kaanapali and Glymur Platforms

dt-bindings: mailbox: qcom: Add IPCC support for Kaanapali and Glymur Platforms

Document the Inter-Processor Communication Controller on the Qualcomm
Kaanapali and Glymur Platforms, which will be used to route interrupts
across various subsystems found on the SoC.

Co-developed-by: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
Signed-off-by: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20251031-knp-ipcc-v3-1-62ffb4168dff@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>