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: http://svn.asterisk.org/svn/asterisk/branches/11@424550 f38db490-d61c-443f-a65b-d21fe96a405b