MLBEDSW-9389: Add support for TOSA CONCAT

* Add support for TOSA CONCAT fewer than 4 dimensions.
* Add some missing RecordOptimisation.
* Fix handling of constant bool tensors.
* Fix TOSA validation.

Signed-off-by: Johan Gunnarsson <johan.gunnarsson@arm.com>
Change-Id: I577f6abf31ef28c1ca128bf2bf3b007b86bec767