[Perf] add patch to optimize apply_topk_topp (#1732)

### What this PR does / why we need it?
Performance optimization for apply_top_k_top_p
### Does this PR introduce _any_ user-facing change?
Use VLLM_ASCEND_ENABLE_TOPK_TOPP_OPTIMIZATION to enable this feature
### How was this patch tested?
e2e & ut

















- vLLM version: v0.9.2
- vLLM main:
6a9e6b2abf

Signed-off-by: Pr0Wh1teGivee <calvin_zhu0210@outlook.com>

vllm_ascend/patch/__init__.py

@@ -129,3 +129,17 @@
 #       This is the problem in vllm-ascend
 #    Future Plan:
 #       Remove this patch once pytorch 2.7.0 is supported for vllm ascend.
+#
+# ** File: worker/patch_common/patch_sampler.py **
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+#   1. `vllm.v1.sample.sampler.Sampler.apply_top_k_top_p`
+#    Why:
+#       We need to use the patched `apply_top_k_top_p` in `sample`.
+#       The mainly reason to overwrite `apply_top_k_top_p` is
+#       to improve performance.
+#    How：
+#       Re-implementation the `apply_top_k_top_p` function by pytorch
+#    Related PR (if no, explain why):
+#       - https://github.com/vllm-project/vllm-ascend/pull/1732
+#    Future Plan:
+#       Revert it when the ascend scatter performance improves.