openvino: serve GET_ROWS on a weight view from the base Constant (#28381)

* openvino: serve GET_ROWS on a weight view from the base Constant

Resolve view_src when collecting weight Constants so a view over a
quantized weight no longer becomes a dynamic typed Parameter, and fold
the row offset of the view into the gather indices instead of slicing
the dequantization subgraph.

* openvino: lift the quantized GET_ROWS view rejection

The supports_op rejection of a quantized src0 view with a nonzero
offset keeps the vs0 GET_ROWS cases of #28253 away from OpenVINO.
The weight view now resolves to the base Constant with the row offset
folded into the gather indices, so the rejection goes away.