#0: added test case for unaligned padding kernels (#15946)

### Ticket
15602

### Problem description
To validate the unaligned padding kernel functionality

### What's changed
Added one simple test case to front pad 4 and back pad 6, testing it's
capacity of padding arbitrary size in kernel.

### Checklist
- [x] Post commit CI passes
https://github.com/tenstorrent/tt-metal/actions/runs/12286944116
- [ ] Blackhole Post commit (if applicable)
- [ ] Model regression CI testing passes (if applicable)
- [ ] Device performance regression CI testing passes (if applicable)
- [ ] **(For models and ops writers)** Full [new
models](https://github.com/tenstorrent/tt-metal/actions/workflows/full-new-models-suite.yaml)
tests passes
- [ ] New/Existing tests provide coverage for changes

tests/ttnn/unit_tests/operations/test_pad.py

@@ -16,7 +16,10 @@
 @pytest.mark.parametrize("c", [3])
 @pytest.mark.parametrize("h", [230])
 @pytest.mark.parametrize("w", [224])
-@pytest.mark.parametrize("padding,torch_padding", [(((0, 1), (3, 25), (32, 32)), (32, 32, 3, 25, 0, 1))])
+@pytest.mark.parametrize(
+    "padding,torch_padding",
+    [(((0, 1), (3, 25), (32, 32)), (32, 32, 3, 25, 0, 1)), (((0, 1), (3, 25), (4, 6)), (4, 6, 3, 25, 0, 1))],
+)
 @pytest.mark.parametrize("value", [0])
 def test_pad_rm(device, n, c, h, w, padding, torch_padding, value):
     torch.manual_seed(0)