arm64: dts: qcom: Add support for SONY Xperia X/X Compact

This adds support for the Sony Xperia Loire/SmartLoire platform
with a base configuration that is common across all of the
devices that are based on this project.

Also adds a base DT configuration for the Xperia X and Xperia
X Compact (respectively, Suzu and Kugo) which is valid for both
their RoW (single-sim), DSDS (dual-sim) and other regional
variants of these two smartphones, that makes us able to boot
to a UART console.

Please note that, currently, the APC0/1 (cluster 0/1) vregs
are set to a safe voltage in order to ensure boot stability
until a proper solution for CPU DVFS scaling lands.

Co-developed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Co-developed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221111120156.48040-12-angelogioacchino.delregno@collabora.com