Fix undefined fht_float in Apple OS (#10280)

Summary:

Fix undefined fht_float in Apple OS

- Added the lib source file for default OS: executorch/extension/llm/custom_ops/spinquant/third-party/FFHT/targets.bzl
- Other changes are auto-gen by the linter

```
source ~/.bashrc
cd ~/fbsource/fbcode/executorch
conda activate executorch
lintrunner -a
```

Differential Revision: D73213645

Author: Di Xu (SWE)

extension/llm/custom_ops/spinquant/third-party/FFHT/targets.bzl

@@ -19,6 +19,9 @@ def define_common_targets():
             "DEFAULT": [],
             "ovr_config//cpu:arm64": ["fht_neon.c"],
             "ovr_config//cpu:x86_64": ["fht_avx.c"],
+            "ovr_config//os:iphoneos": ["fht_avx.c"],
+            "ovr_config//os:macos-x86_64": ["fht_avx.c"],
+            "ovr_config//os:macos-arm64": ["fht_neon.c"],
         }),
         exported_headers = ["fht.h"],
         visibility = ["@EXECUTORCH_CLIENTS"],