Fix debug comments

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5023 43c1dc8c-776e-4df2-8ef1-6e829299be21
Revert part of last commit setting directMedia in sccp_channel.c

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5024 43c1dc8c-776e-4df2-8ef1-6e829299be21