Reduce log level of a non-pubsub error message

Reduce log level of a non-pubsub error message

Drop an error log message to debug level 1 since distributed device
state functions correctly when receiving this message and it spams the
logs.

(closes issue ASTERISK-22410)
Reported by: abelbeck
Patches:
    asterisk-1.8-res_jabber-log-nonpubsub-error-to-debug.patch uploaded by abelbeck (License 5903)
    asterisk-11-res_xmpp-log-nonpubsub-error-to-debug.patch uploaded by abelbeck (License 5903)
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Merged revisions 401119 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 401120 from http://svn.asterisk.org/svn/asterisk/branches/11

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/12@401121 65c4cc65-6c06-0410-ace0-fbb531ad65f3