arm64: dts: qcom: Add ADSP, CDSP & MDSS support to SM8550 and MTP board

This adds support for the aDSP, cDSP and MPSS Subsystems found in
the SM8550 SoC.

The aDSP, cDSP and MPSS needs:
- smp2p support nodes to get event back from the subsystems
- remoteproc nodes with glink-edge subnodes providing all needed
resources to start and run the subsystems

In addition, the MPSS Subsystem needs a rmtfs_mem dedicated
memory zone.

Finally the firmwares file paths are added in the MTP board DT.

This patchset depends on:
- bindings changes at [1]
- base SM8550 DT at [2]

To: Andy Gross <agross@kernel.org>
To: Bjorn Andersson <andersson@kernel.org>
To: Konrad Dybcio <konrad.dybcio@somainline.org>
To: Rob Herring <robh+dt@kernel.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

[1] https://lore.kernel.org/all/20221114-narmstrong-sm8550-upstream-remoteproc-v2-0-12bc22255474@linaro.org
[2] https://lore.kernel.org/all/20221130101744.2849294-1-abel.vesa@linaro.org

---
Changes in v3:
- EDITME: describe what is new in this series revision.
- EDITME: use bulletpoints and terse descriptions.
- Link to v2: https://lore.kernel.org/r/20221115-topic-sm8550-upstream-dts-remoteproc-v2-0-98f7a6b35b34@linaro.org

Changes in v2:
- Dropped dependency on MPSS DSM patchset
- Added DSM memory to MPSS memory-region
- Added DTB firmware name to firmware-name property
- Added reviews and fixes according to Konrad reviews
- Link to v1: https://lore.kernel.org/r/20221115-topic-sm8550-upstream-dts-remoteproc-v1-0-379eec11d841@linaro.org

--- b4-submit-tracking ---
# This section is used internally by b4 prep for tracking purposes.
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