wined3d: Update clipplanes on a shader-fixed function switch.

wined3d: Update clipplanes on a shader-fixed function switch.

The view matrix that was set at the time the clipplane was applied is
hardcoded into the clipplane. With vertex shaders clip planes ignore
the view matrix in d3d. We implement that, but this also means that
the clip planes potentially change when we switch between vs and fixed
func.