Merge remote-tracking branch 'remotes/origin_ORG/master'
fix some problems of setup_fvp_optee.sh
-add usage help,make it easier to use
-change the url/source of fvpv8 tools,you needn't log in arm'site and edit setup_fvp_optee.sh
-break out when compilation fails,such as lack of libs or the project don't make local clean
-add local clean option for build_xx.sh and add local clean script of whole project
-fix some other bugs appeared at ubuntu-12.04.5-server-amd64 OS
rm clean script,it's useless
justfy the scrpit based on joakim Bech'review
uodate setup_fvp_optee.sh