arm sdk: upgrade to 4.7-2012-q4
Merge pull request #186 from solidgoldbomb/upgrade-arm-sdk

arm sdk: upgrade to 4.7-2012-q4
Merge remote-tracking branch 'upstream/next' into sventas/naze32
Merge branch 'sventas/naze32' of https://github.com/SVentas/TauLabs into sventas/naze32