dt-bindings: arm: qcom: Add X1P42100 SoC & CRD

The X1 family is split into two parts: the 10- and 12-core parts are
variants of the same silicon with different fusing, whereas the 8-core
ones are a separate design. Thankfully, the software interface is only
barely different, letting us reuse much of the existing X1 work.

Add X1P42100 SoC (and the CRD based on it) as a representative of the
8-core series.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20241221-topic-x1p4_soc-v1-2-55347831d73c@oss.qualcomm.com


Signed-off-by: Bjorn Andersson <andersson@kernel.org>