Increase CLI command output timeout for asterisk -rx to 60 seconds.

(closes issue #17049)
Reported by: russell
Tested by: russell

Review: https://reviewboard.asterisk.org/r/573/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@253357 65c4cc65-6c06-0410-ace0-fbb531ad65f3