[Bug sanitizer/79341] Many Asan tests fail on s390

[vogt at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79341

--- Comment #68 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
Okay, that fixes the test failure, but the addresses further up in the
backtrace are still bad, e.g.

    #0 0x10008d2 in NullDeref
    #1 0x1000759 in main
    #2 0x3fffce23069 in
    #3 0x10007d5 

Maybe it's not worth it to knock a workaround together when a real fix is
preferrable.  It's probably acceptable to wait for an upstream fix.