Set the sin_family on the bind address socket during initialization

Somehow, chan_jingle has managed to operate for years without setting the
sin_family on its bindaddr socket. This patch properly sets the field during
initial module load to AF_INET.

Note that the patch on the issue was modified slightly to change the
initialization of the socket from allocation of a chan_jingle private to the
module initialization, as the bindaddr object (which is static) only needs to
have the address set once.

(closes issue ASTERISK-19341)
Reported by: andre valentin
patches:
  0105-chan_jingle.patch uploaded by avalentin (License 6064)
........

Merged revisions 381975 from http://svn.asterisk.org/svn/asterisk/branches/1.8


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/11@381976 f38db490-d61c-443f-a65b-d21fe96a405b