[BOLT][docs] Fix typo (llvm#98640)

Typo:

`chwon` --> `chown`

Signed-off-by: Peter Jung <admin@ptr1337.dev>

Author: ptr1337

bolt/docs/OptimizingLinux.md

@@ -37,7 +37,7 @@ Convert `perf` profile into a format suitable for BOLT passing the `vmlinux` bin
 
 
 ```bash
-$ sudo chwon $USER perf.data
+$ sudo chown $USER perf.data
 $ perf2bolt -p perf.data -o perf.fdata vmlinux
 ```