New device: samsung-hero2lte (Samsung Galaxy S7 Edge) (!179)

Display is working in both X and wayland (tested with weston and XFCE).
Not tried with osk-sdl yet, charging-sdl seems to work fine.
USB networking and SSH is working too.

Camera subsystem disabled to prevent bootloops. This device brings its
own dtb.img format, but there's a generator in the kernel source that
is used at build time (patched to make it work properly).

[skip ci]: already built in CI successfully