arm64: dts: qcom: sm8450: Fix GIC_ITS range length

arm64: dts: qcom: sm8450: Fix GIC_ITS range length

Currently, the GITS_SGIR register is cut off. Fix it up.

Fixes: fc8b0b9b630d ("arm64: dts: qcom: sm8450 add ITS device tree node")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260317-topic-its_range_fixup-v1-3-49be8076adb1@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>