[Bug][Compatibility] tile-kernels fails to import with TileLang 0.1.12

## Summary

`tile-kernels==1.0.0` fails to import when installed with TileLang 0.1.12.

TileKernels currently declares the following dependency:

```
tilelang>=0.1.9
```

Therefore, a fresh installation may resolve to TileLang 0.1.12. However, TileKernels still imports determine_target from the old module path:
```python
from tilelang.utils.target import determine_target
```
In TileLang 0.1.12, determine_target was moved to:
```python
from tilelang.backend.target import determine_target
```
As a result, importing `tile_kernels` raises a `ModuleNotFoundError`.

## Minimal reproduction

Run the following command will get `ModuleNotFoundError`

```bash
python -m pip install --no-cache-dir \
"tile-kernels==1.0.0" \
"tilelang==0.1.12"

python - <<'PY'
import importlib.metadata

print("tile-kernels:", importlib.metadata.version("tile-kernels"))
print("tilelang:", importlib.metadata.version("tilelang"))

from tile_kernels.modeling.mhc.functional import mhc_pre
PY
```

## Proposed fix

The root cause is in the file `tile_kernels/quant/common.py`. The following change will fix this bug and this is a common way to fix python dependency bug.

```python
try:
# TileLang >= 0.1.12
from tilelang.backend.target import determine_target
except ImportError:
# TileLang <= 0.1.11
from tilelang.utils.target import determine_target
```