Comment 24 for bug 664431

I ported the following patch to have NEON autodetection. It's basically the same logic as upstream, but without putting NEON as default in case it cant find /proc/self/auxv. It also allows the user to run without NEON, by exporting QT_NO_NEON.

I'm currently trying to build the Qt package with this patch, but my main panda seems dead now and I don' t have physical access to reboot it until wednesday. Will try to compile with another panda that's online, but using mmc as the rootfs, so it'll take some long hours.