Arm backend: Create negative operator_support check unsupported u55 ops (#8682)

Since there will be more unsupported ops for u55 it makes more sense
to create a new negative check for ops which are always unsupported
on u55.

bitwise_support.py is removed with this patch as it's redundent with
the new negative check.

Signed-off-by: Sebastian Larsson <sebastian.larsson@arm.com>