Camera: Enable LTM for factory builds

This is to avoid camera crash on factory builds.
Because disabling LTM could improve camera stability before, we can consider disable it again for factory builds once b/187900993 is clarified.

Test: build pass, capture/recording with Octopus
Bug: 187900993
Change-Id: I00407aa6c7da8b54b009b11c897689e7e003fc2d
1 file changed