Add copyright header QLSTM.cpp

Fixes: 152765420
Test: none needed
Change-Id: If0d896710d44c2dee0f7ad921863e6c94b72dbce
Merged-In: If0d896710d44c2dee0f7ad921863e6c94b72dbce
(cherry picked from commit 675f2286491395b97c830d520c9e4aa0ee0c5f86)
1 file changed