arm64: dts: qcom: Adds base SM4450 DTSI

Add based DTSI for SM4450 SoC and includes base description of
CPUs and interrupt-controller which helps to boot to shell with dcc
console on boards with this SoC.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Tengfei Fan <quic_tengfan@quicinc.com>
Link: https://lore.kernel.org/r/20230731080043.38552-4-quic_tengfan@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>