UPSTREAM: arm64: dts: qcom: qcs404: Add scm firmware node

Add the scm firmware node to QCS404

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
(cherry picked from commit e7fd184f
https://github.com/torvalds/linux.git

)
Signed-off-by: Khasim Syed Mohammed <khasim.mohammed@linaro.org>