dt-bindings: arm: qcom-soc: Extend X1E prefix match for X1P

The X1 series includes SoCs like X1P42100. Extend the pattern x1e match
to x1[ep] to also include these.

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-v1-1-55347831d73c@oss.qualcomm.com


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