Bump up `config.{guess,sub}` to latest

[akosthekiss]

Versions from 2009 & 2011 are way too old, latest versions recognize newer architectures as well, e.g., aarch64.

[jdm]

I reverted this change in 39ed76a because I'm pretty sure it broke our android build automation.

[akosthekiss]

Can you share any info on what that break was? I wouldn't have expected any side effects from the bump-up.

[jdm]

This is the failure log from our android builder: http://build.servo.org/builders/android/builds/571/steps/compile/logs/stdio

[akosthekiss]

Thanks for the log! Oh my, I think I found it... js/src/configure:1385:1398 (and ultimately, js/src/build/autoconf/android.m4:38:51) seem to be the cause of the problem. And a missing * in the arm-linux*-android* pattern.

Since the newer config.sub returns arm-unknown-linux-androideabi for $target (note that extra -unknown), the pattern above does not match, so $android_tool_prefix will get an incorrect value (that of $target_os, which will miss the arm- cpu part), which in turn will find a bad compiler (somewhere around configure:1757).

If I fix configure and android.m4, may config.{guess,sub} get landed again?

[jdm]

Yes.

[akosthekiss]

new PR (with pattern fixes) here: #26