Disable build of res_corosync until it is back in a compiling state

git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@396908 f38db490-d61c-443f-a65b-d21fe96a405b
Update chan_mgcp to the modified parking API

git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@396909 f38db490-d61c-443f-a65b-d21fe96a405b