i915g: Force 1D textures to use wrap mode for the Y coordinate.
There are no 1D textures in HW, so we use 2D, but at the shader level there no Y coordinate to 1D sampling, so we need that value to be ignored. WRAP mode can get us that.
There are no 1D textures in HW, so we use 2D, but at the shader level there no Y coordinate to 1D sampling, so we need that value to be ignored. WRAP mode can get us that.