compiler-rt: Disable xray for now
compiler-rt: Disable xray for now

Fails on some arches e.g. rpi3

/mnt/a/build/tmp-glibc/work/cortexa7hf-neon-vfpv4-oe-linux-gnueabi/compiler-rt/4.0.0+gitAUTOINC+1fdc27db84-r0/git/lib/xray/xray_inmemory_log.cc:88:33: error: unknown type name 'L'
    std::lock_guard<std::mutex> L(LogMutex);
                                ^
/mnt/a/build/tmp-glibc/work/cortexa7hf-neon-vfpv4-oe-linux-gnueabi/compiler-rt/4.0.0+gitAUTOINC+1fdc27db84-r0/git/lib/xray/xray_inmemory_log.cc:182:26: error: no member named 'mutex' in namespace 'std'
    std::lock_guard<std::mutex> L(LogMutex);
                    ~~~~~^
/mnt/a/build/tmp-glibc/work/cortexa7hf-neon-vfpv4-oe-linux-gnueabi/compiler-rt/4.0.0+gitAUTOINC+1fdc27db84-r0/git/lib/xray/xray_inmemory_log.cc:182:33: error: unknown type name 'L'
    std::lock_guard<std::mutex> L(LogMutex);
                                ^

Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

kraj/meta-clang,kraj/meta-clang,kraj/meta-clang