NXP backend: Relocation of remove_io_quant_ops_pass.py (#14202)

### Summary
Relocate `remove_io_quant_ops_pass.py` to `nxp/edge_passes`.

### Test plan
Should be covered by already existing unit tests.

Co-authored-by: Roman Janik <[email protected]>

Author: StrycekSimon

backends/nxp/backend/ir/edge_passes/__init__.py

@@ -12,12 +12,12 @@
 from executorch.backends.nxp.backend.custom_delegation_options import (
     CustomDelegationOptions,
 )
-from executorch.backends.nxp.backend.ir.edge_passes.remove_io_quant_ops_pass import (
-    RemoveIOQuantOpsPass,
-)
 from executorch.backends.nxp.edge_passes.neutron_edge_pass_manager import (
     NeutronEdgePassManager,
 )
+from executorch.backends.nxp.edge_passes.remove_io_quant_ops_pass import (
+    RemoveIOQuantOpsPass,
+)
 from executorch.backends.nxp.neutron_partitioner import NeutronPartitioner
 from executorch.backends.nxp.nxp_backend import generate_neutron_compile_spec
 from executorch.backends.nxp.quantizer.neutron_quantizer import NeutronQuantizer

backends/nxp/backend/ir/edge_passes/remove_io_quant_ops_pass.py renamed to backends/nxp/edge_passes/remove_io_quant_ops_pass.py

@@ -15,7 +15,7 @@
 import executorch.kernels.quantized  # noqa F401
 
 import torch
-from executorch.backends.nxp.backend.ir.edge_passes.remove_io_quant_ops_pass import (
+from executorch.backends.nxp.edge_passes.remove_io_quant_ops_pass import (
     RemoveIOQuantOpsPass,
 )
 from executorch.backends.nxp.neutron_partitioner import NeutronPartitioner