Change the internal name of the menuselect options that are used to control

whether modules are embedded or not; using just the bare category name led to
accidentally enabling these options when users used the wrong "--enable"
operation on the menuselect command line.

Now the internal option names are prefixed with "EMBED_", so they won't be
the same as the name of the category containing the modules they control
the embedding of.
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Merged revisions 341022 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 341023 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@341024 65c4cc65-6c06-0410-ace0-fbb531ad65f3