[compiler-rt] Reapply [compiler-rt] prctl interception update, SECCOMP_MODE_FILTER … (PR #109834)

[via llvm-commits]

Zentrik wrote:

This seems to have broken building on musl for me, do you have any idea how to fix it?
```
/opt/x86_64-linux-musl/bin/../lib/gcc/x86_64-linux-musl/10.2.0/../../../../x86_64-linux-musl/bin/ld: projects/compiler-rt/lib/memprof/CMakeFiles/RTMemprof_dynamic.x86_64.dir/memprof_interceptors.cpp.o: in function `__interceptor_prctl':
/workspace/srcdir/llvm-project/compiler-rt/lib/memprof/../sanitizer_common/sanitizer_common_interceptors.inc:1319: undefined reference to `__sanitizer::struct_sock_fprog_sz'
[16:34:43] collect2: error: ld returned 1 exit status
```

https://github.com/llvm/llvm-project/pull/109834