[mlir][spirv] Fix VectorShuffle assembly format (#72568)

Align with the rest of the spirv dialect by using a functional type
syntax.

Regex for updating existing code:
`spirv\.VectorShuffle (\[.+\]) (%[^:]+): ([^,]+), (%[^:]+): ([^\s]+) ->(.+)`
 ==>
`spirv.VectorShuffle $1 $2, $4 : $3, $5 ->$6`