Update on "[Executorch][BE] Rename sdpa_with_kv_cache.py to custom_ops.py"

Because now we have more than sdpa_with_kv_cache in it

Differential Revision: [D66269486](https://our.internmc.facebook.com/intern/diff/D66269486/)

[ghstack-poisoned]

Author: kimishpatel

extension/llm/custom_ops/custom_ops.py

@@ -17,16 +17,13 @@
 
 from torch.library import impl
 
-# TODO rename this file to custom_ops_meta_registration.py
 try:
     op = torch.ops.llama.sdpa_with_kv_cache.default
     assert op is not None
     op2 = torch.ops.llama.fast_hadamard_transform.default
     assert op2 is not None
 except:
-    path = Path(__file__).parent.resolve()
-    logging.info(f"Looking for libcustom_ops_aot_lib.so in {path}")
-    libs = list(path.glob("libcustom_ops_aot_lib.*"))
+    libs = list(Path(__file__).parent.resolve().glob("libcustom_ops_aot_lib.*"))
     assert len(libs) == 1, f"Expected 1 library but got {len(libs)}"
     logging.info(f"Loading custom ops library: {libs[0]}")
     torch.ops.load_library(libs[0])