For each predefined name, emit a short description within
a comment.

https://www.acpica.org/bugzilla/show_bug.cgi?id=959Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>