im not sure if you can lock to 60fps, but you can adjust the way your events or objects move by using (60*dt) where you can.
like for example an object moving would be something like
set character.x to character.x + 5 *(60*dt).
Edited: there is also this tutorial limit your framerate build to 60 fps
not sure if applies to all exports now. but i guess you can add that command line --limit-fps=60 in the android command build... give it a try and see what happens :D
hope it helps.