Used AUTO_RELEASE in sccp_pbx.

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5492 43c1dc8c-776e-4df2-8ef1-6e829299be21
Used AUTO_RELEASE in sccp_rtp.

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5493 43c1dc8c-776e-4df2-8ef1-6e829299be21
Used AUTO_RELEASE in sccp_socket.

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5494 43c1dc8c-776e-4df2-8ef1-6e829299be21