arm64: dts: qcom: sc7280: Fix up the gic node

Fix the following schema warning:

gic-its@17a40000: False schema does not allow {'compatible':
['arm,gic-v3-its'], 'msi-controller': True, '#msi-cells': [[1]],
'reg': [[0, 396623872, 0, 131072]], 'status': ['disabled']}

And reorder the properties to be more in order with all other nodes.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230407-topic-msm_dtb-v1-4-6efb4196f51f@linaro.org