[DT][SVE] adjust tile sizes for mmt4d & disable transposition of narrow-N matmuls (#21701)

This PR builds upon #21304 and takes a step forward to adjust tile sizes
in the existence of scalable inner tiles with `mmt4d`. This is step 2/N
to enable data-tiling with SVE. There will be others to adjust tile
sizes for packs/unpacks as well.

Also, since SVE requires the `N` dimension to be scalable -
because of vectorization unrolling on the inner `M` dimension and this
currently not being supported for scalable `M` dims - disables
transposition of narrow-N matmuls.

On another note, we currently walk the IR to retrieve the inner tile
sizes of the `mmt4d`. This mechanism currently assumes that only `M` and `N` dimensions could be scalable, which holds for SME and SVE.
Although for future references, we could either find another mechanism
to communicate the inner tile sizes chosen during materialization to the
tile size selection OR extend this method to handle the inputs - and
therefore infer the scalable K as well.

Note: materialization of SME is currently not supported.

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Signed-off-by: Ege Beysel <beyselege@gmail.com>