LU-1187 tests: chmod +x for dir_remote.sh

chmod +x for dir_remote.sh

Signed-off-by: wang di <di.wang@whamcloud.com>
Change-Id: I77d670594c128d4f18903bd247a49df7f8ead970
Reviewed-on: http://review.whamcloud.com/4997
Tested-by: Hudson
Reviewed-by: Jian Yu <jian.yu@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>