Add device_interface initmod (even on Hexagon).
Add device_interface initmod (even on Hexagon).


Former-commit-id: 79db68221b78c6d2c8d260431df79a49aebe1d2a
darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide