Arm backend: Don't handle const placeholders in match_arg_ranks_pass (#9134)

This pass did previously handle constant placeholders directly by
modifying the data in the state_dict, whereas call_functions are handled
by inserting view ops. Since the introduction of the FuseConsantOpsPass
however, ops acting on constant placeholders are computed AOT and fused
into one single node.

We can therefore now handle all nodes the same way here by inserting
view nodes, removing the need for a special case in this pass.


Signed-off-by: Martin Lindström <Martin.Lindstroem@arm.com>