[compiler-rt] [asan,test] Disable _FORTIFY_SOURCE test incompatible with glibc 2.40 (PR #101566)

[Adhemerval Zanella via llvm-commits]

zatrazz wrote:

LGTM to me as well, but I wonder how hard would to make sanitizer work properly with forfity calls (maybe just bypass them to internal fortify implementations). Distros are now setting the fortify cflags as default for their toolchain packages, and it would be good usability if users do not need to disable fortify to enable sanitizers.

https://github.com/llvm/llvm-project/pull/101566