MLBEDSW-11350: Add ReduceMin support to Ethos-U55
Added GraphIrOptimiser functionality that rewrites ReduceMin when hardware support does not exist. The operator is replaced by a ReduceMax that works on the inverted input given by the operators Sub->ReduceMax->Sub.
Change-Id: I36181b42f19b036a6eb2b7a56808e15b73108b64 Signed-off-by: Max Bergfelt max.bergfelt@arm.com