chan_motif: Release format capabilities and config on module load error

ASTERISK-24384 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/4043/


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@424550 65c4cc65-6c06-0410-ace0-fbb531ad65f3