[Bug sanitizer/64435] [5.0.0 Regression] Bootstrap failure in libsanitizer on AArch64 with Linux kernel <= 3.15

[david.abdurachmanov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64435

--- Comment #2 from David Abdurachmanov <david.abdurachmanov at gmail dot com> ---
linux/version.h does not bring any additional kernel headers, its fully
standalone and seems fine to include.

There might be a problem is someone builds a distribution with GCC 5 and kernel
<=3.15 and then decides to update the kernel creating mismatch with
libsanitizer.