INTERNAL: ARM: dts: msm: Add restart node for QCS404

Add restart node so that HLOS can trigger reset.

Change-Id: I77595636c12973c04ab7b06807e3f6b61a8bd657
Signed-off-by: Pranav Patel <pranavp@codeaurora.org>
Reviewed-on: https://chromium-review.googlesource.com/c/1426663


Tested-by: SANTHOSH JANARDHANA HASSAN <sahassan@google.com>
Tested-by: Zhihong Yu <zhihongyu@chromium.org>
Reviewed-by: Zhihong Yu <zhihongyu@chromium.org>
Commit-Queue: Zhihong Yu <zhihongyu@chromium.org>
[move restart node to mistral dts]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Khasim Syed Mohammed <khasim.mohammed@linaro.org>

Change-Id: I6add8d960d9a327fc2fd4b3998e6eb62d6af7a75