arm64: dts: qcom: add SA8540P ride(Qdrive-3)

Introduce the Qualcomm SA8540P ride automotive platform, also known as
Qdrive-3 development board.

This initial contribution supports SMP, CPUFreq, cluster idle, UFS, RPMh
regulators, debug UART, PMICs, remoteprocs and USB.

The SA8540P ride contains four PM8450 PMICs. A separate DTSI file has
been created for PMIC, so that it can be used for future SA8540P based
boards.

Signed-off-by: Parikshit Pareek <quic_ppareek@quicinc.com>
Tested-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Tested-by: Eric Chanudet <echanude@redhat.com>
Reviewed-by: Eric Chanudet <echanude@redhat.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Andrew Halaney <ahalaney@redhat.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221118025158.16902-3-quic_ppareek@quicinc.com