arm64: dts: qcom: x1e80100: Fix PCIe 3rd controller DBI size

According to documentation, the DBI range size is 0xf20. So fix it.

Cc: stable@vger.kernel.org # 6.14
Fixes: f8af195b ("arm64: dts: qcom: x1e80100: Add support for PCIe3 on x1e80100")
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250422-x1e80100-dts-fix-pcie3-dbi-size-v1-1-c197701fd7e4@linaro.org


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