Skinny: fix reversed device reset from CLI.

Existing code would do a full device restart when "skinny reset device"
was entered at the CLI and do a reset when "skinny reset device restart"
entered. 
........

Merged revisions 405893 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@405894 f38db490-d61c-443f-a65b-d21fe96a405b