MLBEDSW-10561: Fix ConstraintBias shape checks
- Supported-ops constrained bias shapes to 1D. This caused unnecessary CPU-fallback.
- Update check to constrain all elements to channel axis instead
Change-Id: Ic4e80c6446544d8eb8dcca29cbdb4e1a5e37a4fc Signed-off-by: Alexander Bengtsson Alexander.Bengtsson@arm.com