elm_cnp.c: initialize local variable.
elm_cnp.c: initialize local variable.

This fixes coverity CID 1039988 Uninitialized scalar variable (UNINIT).

rvandegrift/elementary,tasn/elementary,rvandegrift/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary,tasn/elementary,FlorentRevest/Elementary,rvandegrift/elementary,FlorentRevest/Elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,tasn/elementary