Fix compile warning about unused buffer. Reduced debug prefix level for devstate changes.

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4841 43c1dc8c-776e-4df2-8ef1-6e829299be21
ast_enable_distributed_devstate on devstate module load

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4842 43c1dc8c-776e-4df2-8ef1-6e829299be21
ast_enable_distributed_devstate in ast modules

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4843 43c1dc8c-776e-4df2-8ef1-6e829299be21