arm64: dts: qcom: x1e80100: Describe the full 'link' region of DP hosts

arm64: dts: qcom: x1e80100: Describe the full 'link' region of DP hosts

The regions are larger than currently described. Rather inconveniently,
some control registers, including some related to USB4, are in that
left-out chunk.

Extend it to cover the entire region, as per the hw specification.

Fixes: 1940c25eaa63 ("arm64: dts: qcom: x1e80100: Add display nodes")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20251009-topic-hamoa_dp_reg-v1-1-4c70afa5f029@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>