Menuselect: Fix incorrect enabling on failed deps

This corrects a situation where menuselect can incorrectly enable a
module by default that has defaultenabled set to "no" and has
failed/non-selected dependencies. The bug is due to an inverted test
when checking for whether the given module should be set to enabled by
default on load.

Review: https://reviewboard.asterisk.org/r/3975/
Reported by: John Bigelow
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Merged revisions 422646 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@422647 65c4cc65-6c06-0410-ace0-fbb531ad65f3