Claude review: accel/ivpu: Add disable clock relinquish workaround for NVL-A0

[Claude Code Review Bot <claude-review@example.com>]

Patch Review

**Change summary:** Defines `IVPU_HW_IP_REV_NVL_A0` as 0 in `ivpu_drv.h` and extends the `wa_init()` condition in `ivpu_hw.c` to also enable the `disable_clock_relinquish` workaround for NVL A0 devices.

**Review:**

1. **`IVPU_HW_IP_REV_NVL_A0 0` definition** — Placed logically next to the existing `IVPU_HW_IP_REV_LNL_B0` define. Fine.

2. **Condition logic in `wa_init()`:**
   ```c
   if ((ivpu_device_id(vdev) == PCI_DEVICE_ID_LNL &&
        ivpu_revision(vdev) < IVPU_HW_IP_REV_LNL_B0) ||
       (ivpu_device_id(vdev) == PCI_DEVICE_ID_NVL &&
        ivpu_revision(vdev) == IVPU_HW_IP_REV_NVL_A0))
   ```
   The LNL case uses `<` (all revisions before B0) while NVL uses `==` (only A0). This is intentional — NVL A0 revision is 0, so using `<` would match nothing (`< 0` is impossible for what is presumably an unsigned value). Using `==` is the correct approach here, and it also signals that only the A0 stepping needs the workaround, not future revisions.

3. **Cc: stable with version tag** — The `Cc: <stable@vger.kernel.org> # v6.19+` is correct since that's when NVL support was added via commit `550f4dd2cedd`.

4. **Fixes tag** — Points to the NVL support commit, which is appropriate — the workaround should have been included when NVL was first added.

No issues. The patch is clean, minimal, and correct.

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