freedreno/a6xx: Fix for unbound VS inputs
Don't inherit random/undefined previous VFD_FETCH[n] state.
Also, split up VFD_FETCH[] state so we don't overflow the max PKT4 size (plus add an assert that would have caught that)
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Don't inherit random/undefined previous VFD_FETCH[n] state.
Also, split up VFD_FETCH[] state so we don't overflow the max PKT4 size (plus add an assert that would have caught that)