Ng/hci cut

[nikgiu]

Adding of hci cuts for idma,ext and cores:
The parameters CUT_CORES, CUT_IDMA and CUT_EXT set to 1 permits to add cuts in the rtl/ecc/hci_ecc_interconnect.sv and rtl/hci_interconnect.sv .

[FrancescoConti]

Only a minor change to the header in hci_core_cut.sv is required before merging.

[FrancescoConti]

Use the style from other HCI files, and add Fondazione Chips-IT as copyright holder.
So something like

/*
 * hci_core_cut.sv
 * Niccolò Giuliani <niccolo.giuliani@chips.it>
 *
 * Copyright (C) 2026 ETH Zurich, University of Bologna and Fondazione Chips-IT
 * Copyright and related rights are licensed under the Solderpad Hardware
 * License, Version 0.51 (the "License"); you may not use this file except in
 * compliance with the License.  You may obtain a copy of the License at
 * http://solderpad.org/licenses/SHL-0.51. Unless required by applicable law
 * or agreed to in writing, software, hardware and materials distributed under
 * this License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */

/**
 * The **hci_core_cut** module implements a simple assignment for
 * HCI-Core streams.
 *
 */

[FrancescoConti]

seems fine now, but for some reason it fails the non-regression test. i will give a look

[FrancescoConti]

should be fixed, it was a size mismatch with the testbench. i will merge if it passes nonreg.