[compiler-rt] [sanitizer] Disallow external_symbolizer_path with AT_SECURE (PR #92611)

[via llvm-commits]

bigb4ng wrote:

@fmayer Cool. Friendly reminders:
1.  `SANITIZER_GO` is currently not affected by this patch due to https://github.com/llvm/llvm-project/blob/e2db08f8f1a7dd37cd18705164f0c1188707e5b6/compiler-rt/lib/sanitizer_common/sanitizer_getauxval.h#L26
2. `log_path=stdout` and `log_path=stderr` for `AT_SECURE` are not supported in this version.

Trust your judgement on those. I will close #92593.

https://github.com/llvm/llvm-project/pull/92611