Comment 3 for bug 1712007

According to https://wiki.debian.org/Arm64Port, gcc-4.8 did not support libssp/-fstack-protector on arm64. I've committed a fix that should address this in QRT in https://git.launchpad.net/qa-regression-testing/commit/?id=63a5c8e6ab8f82817337ffdac0258c17ef443b48

Please let me know if this does not address the issue. Thanks!