MLBEDSW-10868: Refine Ethos-U55/U65 transpose constraints

We can actually support all transpose types in a 3D shape on
Ethos-U55/U65 through decomposition. The 64k axis constraint remains.

Signed-off-by: Johan Gunnarsson <johan.gunnarsson@arm.com>
Change-Id: Idd6769a9f001f1cab05e764a3c052137b5ba6c2a